331413525 has 30 divisors (see below), whose sum is σ = 613896162. Its totient is φ = 176752800.

The previous prime is 331413517. The next prime is 331413527. The reversal of 331413525 is 525314133.

It can be written as a sum of positive squares in 3 ways, for example, as 6765201 + 324648324 = 2601^2 + 18018^2 .

It is not a de Polignac number, because 331413525 - 2³ = 331413517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331413527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 79806 + ... + 83855.

Almost surely, 2^331413525 is an apocalyptic number.

It is an amenable number.

331413525 is a deficient number, since it is larger than the sum of its proper divisors (282482637).

331413525 is a wasteful number, since it uses less digits than its factorization.

331413525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163683 (or 163669 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 331413525 is about 18204.7665461549. The cubic root of 331413525 is about 692.0275898931.

Adding to 331413525 its reverse (525314133), we get a palindrome (856727658).

The spelling of 331413525 in words is "three hundred thirty-one million, four hundred thirteen thousand, five hundred twenty-five".