232288081 has 3 divisors (see below), whose sum is σ = 232303323. Its totient is φ = 232272840.

The previous prime is 232288079. The next prime is 232288087. The reversal of 232288081 is 180882232.

The square root of 232288081 is 15241.

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

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 can be written as a sum of positive squares in only one way, i.e., 183846481 + 48441600 = 13559^2 + 6960^2 .

It is not a de Polignac number, because 232288081 - 2¹ = 232288079 is a prime.

It is a super-2 number, since 2×232288081² = 107915505149325122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232288087) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7621 + ... + 22861.

It is an arithmetic number, because the mean of its divisors is an integer number (77434441).

Almost surely, 2^232288081 is an apocalyptic number.

232288081 is the 15241-st square number.

232288081 is the 7621-st centered octagonal number.

It is an amenable number.

232288081 is a deficient number, since it is larger than the sum of its proper divisors (15242).

232288081 is an frugal number, since it uses more digits than its factorization.

232288081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30482 (or 15241 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The cubic root of 232288081 is about 614.7175921529.

The spelling of 232288081 in words is "two hundred thirty-two million, two hundred eighty-eight thousand, eighty-one".