3131255045 has 4 divisors (see below), whose sum is σ = 3757506060. Its totient is φ = 2505004032.

The previous prime is 3131255033. The next prime is 3131255047. The reversal of 3131255045 is 5405521313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1951607329 + 1179647716 = 44177^2 + 34346^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131255045 - 2²⁴ = 3114477829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131254999 and 3131255017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131255047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313125500 + ... + 313125509.

It is an arithmetic number, because the mean of its divisors is an integer number (939376515).

Almost surely, 2^3131255045 is an apocalyptic number.

It is an amenable number.

3131255045 is a deficient number, since it is larger than the sum of its proper divisors (626251015).

3131255045 is an equidigital number, since it uses as much as digits as its factorization.

3131255045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626251014.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 3131255045 is about 55957.6182927758. The cubic root of 3131255045 is about 1462.9836783332.

Adding to 3131255045 its reverse (5405521313), we get a palindrome (8536776358).

The spelling of 3131255045 in words is "three billion, one hundred thirty-one million, two hundred fifty-five thousand, forty-five".