5123131245 has 24 divisors (see below), whose sum is σ = 8892266136. Its totient is φ = 2728591488.

The previous prime is 5123131163. The next prime is 5123131267. The reversal of 5123131245 is 5421313215.

It can be written as a sum of positive squares in 4 ways, for example, as 3675633129 + 1447498116 = 60627^2 + 38046^2 .

It is not a de Polignac number, because 5123131245 - 2²⁶ = 5056022381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44674 + ... + 110643.

It is an arithmetic number, because the mean of its divisors is an integer number (370511089).

Almost surely, 2^5123131245 is an apocalyptic number.

It is an amenable number.

5123131245 is a deficient number, since it is larger than the sum of its proper divisors (3769134891).

5123131245 is a wasteful number, since it uses less digits than its factorization.

5123131245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156061 (or 156058 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5123131245 is about 71576.0521752911. The cubic root of 5123131245 is about 1723.8990378633.

The spelling of 5123131245 in words is "five billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred forty-five".