2015105131 has 12 divisors (see below), whose sum is σ = 2186056512. Its totient is φ = 1856670816.

The previous prime is 2015105111. The next prime is 2015105231. The reversal of 2015105131 is 1315015102.

It is not a de Polignac number, because 2015105131 - 2²⁵ = 1981550699 is a prime.

It is a super-2 number, since 2×2015105131² = 8121297377965054322, 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 = 2015105099 and 2015105108.

It is not an unprimeable number, because it can be changed into a prime (2015105111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83430 + ... + 104836.

It is an arithmetic number, because the mean of its divisors is an integer number (182171376).

Almost surely, 2^2015105131 is an apocalyptic number.

2015105131 is a deficient number, since it is larger than the sum of its proper divisors (170951381).

2015105131 is a wasteful number, since it uses less digits than its factorization.

2015105131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21990 (or 21977 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 2015105131 is about 44889.9223768543. The cubic root of 2015105131 is about 1263.0849767096.

The spelling of 2015105131 in words is "two billion, fifteen million, one hundred five thousand, one hundred thirty-one".