2015606131 has 24 divisors (see below), whose sum is σ = 2567462400. Its totient is φ = 1564693200.

The previous prime is 2015606083. The next prime is 2015606137. The reversal of 2015606131 is 1316065102.

It is not a de Polignac number, because 2015606131 - 2²⁷ = 1881388403 is a prime.

It is a super-2 number, since 2×2015606131² = 8125336150649578322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2015606096 and 2015606105.

It is not an unprimeable number, because it can be changed into a prime (2015606137) 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 23 ways as a sum of consecutive naturals, for example, 139170 + ... + 152968.

It is an arithmetic number, because the mean of its divisors is an integer number (106977600).

Almost surely, 2^2015606131 is an apocalyptic number.

2015606131 is a deficient number, since it is larger than the sum of its proper divisors (551856269).

2015606131 is a wasteful number, since it uses less digits than its factorization.

2015606131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14095 (or 14088 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2015606131 is about 44895.5023471171. The cubic root of 2015606131 is about 1263.1896450514.

The spelling of 2015606131 in words is "two billion, fifteen million, six hundred six thousand, one hundred thirty-one".