234247288081 has 3 divisors (see below), whose sum is σ = 234247772073. Its totient is φ = 234246804090.

The previous prime is 234247288021. The next prime is 234247288117. The reversal of 234247288081 is 180882742432.

The square root of 234247288081 is 483991.

It is a perfect power (a square), and thus also a powerful number.

234247288081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 234247288081 - 2¹⁵ = 234247255313 is a prime.

It is a super-2 number, since 2×234247288081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234247288001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 241996 + ... + 725986.

It is an arithmetic number, because the mean of its divisors is an integer number (78082590691).

Almost surely, 2^234247288081 is an apocalyptic number.

234247288081 is the 483991-st square number.

234247288081 is the 241996-th centered octagonal number.

It is an amenable number.

234247288081 is a deficient number, since it is larger than the sum of its proper divisors (483992).

234247288081 is an frugal number, since it uses more digits than its factorization.

234247288081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967982 (or 483991 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 49.

Multiplying 234247288081 by its sum of digits (49), we get a square (11478117115969 = 3387937²).

The spelling of 234247288081 in words is "two hundred thirty-four billion, two hundred forty-seven million, two hundred eighty-eight thousand, eighty-one".