3131552145 has 16 divisors (see below), whose sum is σ = 5095408320. Its totient is φ = 1641852864.

The previous prime is 3131552077. The next prime is 3131552191. The reversal of 3131552145 is 5412551313.

It is not a de Polignac number, because 3131552145 - 2⁸ = 3131551889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768354 + ... + 1770123.

It is an arithmetic number, because the mean of its divisors is an integer number (318463020).

Almost surely, 2^3131552145 is an apocalyptic number.

It is an amenable number.

3131552145 is a deficient number, since it is larger than the sum of its proper divisors (1963856175).

3131552145 is a wasteful number, since it uses less digits than its factorization.

3131552145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538544.

The product of its digits is 9000, while the sum is 30.

The square root of 3131552145 is about 55960.2729174903. The cubic root of 3131552145 is about 1463.0299471826.

The spelling of 3131552145 in words is "three billion, one hundred thirty-one million, five hundred fifty-two thousand, one hundred forty-five".