3231239929225 has 405 divisors, whose sum is σ = 5562496233749. Its totient is φ = 1860264067200.

The previous prime is 3231239929157. The next prime is 3231239929237. The reversal of 3231239929225 is 5229299321323.

The square root of 3231239929225 is 1797565.

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

3231239929225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 44415141001 + 3186824788224 = 210749^2 + 1785168^2 .

It is not a de Polignac number, because 3231239929225 - 2⁷ = 3231239929097 is a prime.

It is a super-2 number, since 2×3231239929225² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 404 ways as a sum of consecutive naturals, for example, 111422066511 + ... + 111422066539.

Almost surely, 2^{3231239929225} is an apocalyptic number.

3231239929225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3231239929225 is the 1797565-th square number.

3231239929225 is the 898783-rd centered octagonal number.

It is an amenable number.

3231239929225 is a deficient number, since it is larger than the sum of its proper divisors (2331256304524).

3231239929225 is an equidigital number, since it uses as much as digits as its factorization.

3231239929225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 75 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 52.

The spelling of 3231239929225 in words is "three trillion, two hundred thirty-one billion, two hundred thirty-nine million, nine hundred twenty-nine thousand, two hundred twenty-five".