1150022861 has 24 divisors (see below), whose sum is σ = 1315228320. Its totient is φ = 1002321216.

The previous prime is 1150022857. The next prime is 1150022897. The reversal of 1150022861 is 1682200511.

It is not a de Polignac number, because 1150022861 - 2² = 1150022857 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 1150022861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150022561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1788206 + ... + 1788848.

It is an arithmetic number, because the mean of its divisors is an integer number (54801180).

Almost surely, 2^1150022861 is an apocalyptic number.

It is an amenable number.

1150022861 is a deficient number, since it is larger than the sum of its proper divisors (165205459).

1150022861 is a wasteful number, since it uses less digits than its factorization.

1150022861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1150022861 is about 33911.9869810072. The cubic root of 1150022861 is about 1047.6964955114.

The spelling of 1150022861 in words is "one billion, one hundred fifty million, twenty-two thousand, eight hundred sixty-one".