1012975881 has 8 divisors (see below), whose sum is σ = 1370793504. Its totient is φ = 665237760.

The previous prime is 1012975877. The next prime is 1012975891. The reversal of 1012975881 is 1885792101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012975881 - 2² = 1012975877 is a prime.

It is a super-2 number, since 2×1012975881² = 2052240270975452322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012975891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2519640 + ... + 2520041.

It is an arithmetic number, because the mean of its divisors is an integer number (171349188).

Almost surely, 2^1012975881 is an apocalyptic number.

It is an amenable number.

1012975881 is a deficient number, since it is larger than the sum of its proper divisors (357817623).

1012975881 is an equidigital number, since it uses as much as digits as its factorization.

1012975881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039751.

The product of its (nonzero) digits is 40320, while the sum is 42.

The square root of 1012975881 is about 31827.2820234465. The cubic root of 1012975881 is about 1004.3067192096.

The spelling of 1012975881 in words is "one billion, twelve million, nine hundred seventy-five thousand, eight hundred eighty-one".