1086631931 has 16 divisors (see below), whose sum is σ = 1356196608. Its totient is φ = 845829600.

The previous prime is 1086631921. The next prime is 1086631957. The reversal of 1086631931 is 1391366801.

It is not a de Polignac number, because 1086631931 - 2⁶ = 1086631867 is a prime.

It is a super-2 number, since 2×1086631931² = 2361537906937577522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086631921) 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, 71036 + ... + 84966.

It is an arithmetic number, because the mean of its divisors is an integer number (84762288).

Almost surely, 2^1086631931 is an apocalyptic number.

1086631931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1086631931 is a deficient number, since it is larger than the sum of its proper divisors (269564677).

1086631931 is a wasteful number, since it uses less digits than its factorization.

1086631931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14962.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1086631931 is about 32964.1006399386. The cubic root of 1086631931 is about 1028.0813659121.

The spelling of 1086631931 in words is "one billion, eighty-six million, six hundred thirty-one thousand, nine hundred thirty-one".