331311465 has 40 divisors (see below), whose sum is σ = 597155328. Its totient is φ = 175733280.

The previous prime is 331311443. The next prime is 331311499. The reversal of 331311465 is 564113133.

It is not a de Polignac number, because 331311465 - 2⁶ = 331311401 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 75214 + ... + 79496.

Almost surely, 2^331311465 is an apocalyptic number.

It is an amenable number.

331311465 is a deficient number, since it is larger than the sum of its proper divisors (265843863).

331311465 is a wasteful number, since it uses less digits than its factorization.

331311465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491 (or 4482 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 331311465 is about 18201.9632182905. The cubic root of 331311465 is about 691.9565451290.

Adding to 331311465 its reverse (564113133), we get a palindrome (895424598).

It can be divided in two parts, 331311 and 465, that added together give a 4-th power (331776 = 24⁴).

The spelling of 331311465 in words is "three hundred thirty-one million, three hundred eleven thousand, four hundred sixty-five".