3131002245 has 48 divisors (see below), whose sum is σ = 5834049408. Its totient is φ = 1429706880.

The previous prime is 3131002211. The next prime is 3131002279. The reversal of 3131002245 is 5422001313.

It is an interprime number because it is at equal distance from previous prime (3131002211) and next prime (3131002279).

It is not a de Polignac number, because 3131002245 - 2⁷ = 3131002117 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 47 ways as a sum of consecutive naturals, for example, 866232 + ... + 869838.

It is an arithmetic number, because the mean of its divisors is an integer number (121542696).

Almost surely, 2^3131002245 is an apocalyptic number.

3131002245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3131002245 is a deficient number, since it is larger than the sum of its proper divisors (2703047163).

3131002245 is a wasteful number, since it uses less digits than its factorization.

3131002245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810 (or 4803 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3131002245 is about 55955.3593947890. The cubic root of 3131002245 is about 1462.9443062367.

Adding to 3131002245 its reverse (5422001313), we get a palindrome (8553003558).

The spelling of 3131002245 in words is "three billion, one hundred thirty-one million, two thousand, two hundred forty-five".