1016681931 has 12 divisors (see below), whose sum is σ = 1469117520. Its totient is φ = 677521680.

The previous prime is 1016681927. The next prime is 1016681933. The reversal of 1016681931 is 1391866101.

It is a happy number.

It is not a de Polignac number, because 1016681931 - 2² = 1016681927 is a prime.

It is a super-2 number, since 2×1016681931² = 2067284297643777522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1016681933) 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 11 ways as a sum of consecutive naturals, for example, 3565 + ... + 45233.

It is an arithmetic number, because the mean of its divisors is an integer number (122426460).

Almost surely, 2^1016681931 is an apocalyptic number.

1016681931 is a deficient number, since it is larger than the sum of its proper divisors (452435589).

1016681931 is a wasteful number, since it uses less digits than its factorization.

1016681931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44386 (or 44383 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1016681931 is about 31885.4501457953. The cubic root of 1016681931 is about 1005.5300063257.

The spelling of 1016681931 in words is "one billion, sixteen million, six hundred eighty-one thousand, nine hundred thirty-one".