182858009161 has 3 divisors (see below), whose sum is σ = 182858436781. Its totient is φ = 182857581542.

The previous prime is 182858009153. The next prime is 182858009183. The reversal of 182858009161 is 161900858281.

The square root of 182858009161 is 427619.

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

182858009161 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 182858009161 - 2³ = 182858009153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182858009261) 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, 213810 + ... + 641428.

Almost surely, 2^182858009161 is an apocalyptic number.

182858009161 is the 427619-th square number.

182858009161 is the 213810-th centered octagonal number.

It is an amenable number.

182858009161 is a deficient number, since it is larger than the sum of its proper divisors (427620).

182858009161 is an frugal number, since it uses more digits than its factorization.

182858009161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855238 (or 427619 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 49.

Multiplying 182858009161 by its sum of digits (49), we get a square (8960042448889 = 2993333²).

The spelling of 182858009161 in words is "one hundred eighty-two billion, eight hundred fifty-eight million, nine thousand, one hundred sixty-one".