1012911955 has 8 divisors (see below), whose sum is σ = 1325993904. Its totient is φ = 736663200.

The previous prime is 1012911919. The next prime is 1012911961. The reversal of 1012911955 is 5591192101.

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

It is not a de Polignac number, because 1012911955 - 2²⁵ = 979357523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012911955.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9208236 + ... + 9208345.

It is an arithmetic number, because the mean of its divisors is an integer number (165749238).

Almost surely, 2^1012911955 is an apocalyptic number.

1012911955 is a deficient number, since it is larger than the sum of its proper divisors (313081949).

1012911955 is a wasteful number, since it uses less digits than its factorization.

1012911955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18416597.

The product of its (nonzero) digits is 4050, while the sum is 34.

The square root of 1012911955 is about 31826.2777433994. The cubic root of 1012911955 is about 1004.2855924604.

The spelling of 1012911955 in words is "one billion, twelve million, nine hundred eleven thousand, nine hundred fifty-five".