1015631012 has 24 divisors (see below), whose sum is σ = 1941119040. Its totient is φ = 461129760.

The previous prime is 1015631009. The next prime is 1015631027. The reversal of 1015631012 is 2101365101.

It is a super-2 number, since 2×1015631012² = 2063012705072288288, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27878 + ... + 52994.

It is an arithmetic number, because the mean of its divisors is an integer number (80879960).

Almost surely, 2^1015631012 is an apocalyptic number.

It is an amenable number.

1015631012 is a deficient number, since it is larger than the sum of its proper divisors (925488028).

1015631012 is a wasteful number, since it uses less digits than its factorization.

1015631012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26051 (or 26049 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1015631012 is about 31868.9662838317. The cubic root of 1015631012 is about 1005.1834230364.

Adding to 1015631012 its reverse (2101365101), we get a palindrome (3116996113).

The spelling of 1015631012 in words is "one billion, fifteen million, six hundred thirty-one thousand, twelve".