313055145 has 64 divisors (see below), whose sum is σ = 620121600. Its totient is φ = 148780800.

The previous prime is 313055089. The next prime is 313055147. The reversal of 313055145 is 541550313.

It is not a de Polignac number, because 313055145 - 2¹⁰ = 313054121 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313055147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47820 + ... + 53970.

It is an arithmetic number, because the mean of its divisors is an integer number (9689400).

Almost surely, 2^313055145 is an apocalyptic number.

It is an amenable number.

313055145 is a deficient number, since it is larger than the sum of its proper divisors (307066455).

313055145 is a wasteful number, since it uses less digits than its factorization.

313055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6207 (or 6201 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 313055145 is about 17693.3644341601. The cubic root of 313055145 is about 679.0060051973.

The spelling of 313055145 in words is "three hundred thirteen million, fifty-five thousand, one hundred forty-five".