311412045 has 32 divisors (see below), whose sum is σ = 570140928. Its totient is φ = 142184448.

The previous prime is 311412007. The next prime is 311412053. The reversal of 311412045 is 540214113.

It is not a de Polignac number, because 311412045 - 2¹⁰ = 311411021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126567 + ... + 129003.

It is an arithmetic number, because the mean of its divisors is an integer number (17816904).

Almost surely, 2^311412045 is an apocalyptic number.

311412045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

311412045 is a deficient number, since it is larger than the sum of its proper divisors (258728883).

311412045 is a wasteful number, since it uses less digits than its factorization.

311412045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 311412045 is about 17646.8706857618. The cubic root of 311412045 is about 677.8159780245.

Adding to 311412045 its reverse (540214113), we get a palindrome (851626158).

The spelling of 311412045 in words is "three hundred eleven million, four hundred twelve thousand, forty-five".