5131000265 has 16 divisors (see below), whose sum is σ = 6521109120. Its totient is φ = 3862321920.

The previous prime is 5131000261. The next prime is 5131000289. The reversal of 5131000265 is 5620001315.

It is not a de Polignac number, because 5131000265 - 2² = 5131000261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5131000265.

It is not an unprimeable number, because it can be changed into a prime (5131000261) by changing a digit.

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, 523076 + ... + 532794.

It is an arithmetic number, because the mean of its divisors is an integer number (407569320).

Almost surely, 2^5131000265 is an apocalyptic number.

It is an amenable number.

5131000265 is a deficient number, since it is larger than the sum of its proper divisors (1390108855).

5131000265 is a wasteful number, since it uses less digits than its factorization.

5131000265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15952.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 5131000265 is about 71631.0007259427. Note that the first 3 decimals coincide. The cubic root of 5131000265 is about 1724.7812103663.

The spelling of 5131000265 in words is "five billion, one hundred thirty-one million, two hundred sixty-five", and thus it is an aban number.