1164145900 has 18 divisors (see below), whose sum is σ = 2526196820. Its totient is φ = 465658320.

The previous prime is 1164145889. The next prime is 1164145963. The reversal of 1164145900 is 95414611.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5820630 + ... + 5820829.

Almost surely, 2^1164145900 is an apocalyptic number.

1164145900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164145900 is an abundant number, since it is smaller than the sum of its proper divisors (1362050920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1164145900 is a wasteful number, since it uses less digits than its factorization.

1164145900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11641473 (or 11641466 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1164145900 is about 34119.5823538331. The cubic root of 1164145900 is about 1051.9678591384.

The spelling of 1164145900 in words is "one billion, one hundred sixty-four million, one hundred forty-five thousand, nine hundred".