1815136104 has 32 divisors (see below), whose sum is σ = 4804773120. Its totient is φ = 569454336.

The previous prime is 1815136093. The next prime is 1815136111. The reversal of 1815136104 is 4016315181.

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, 2224024 + ... + 2224839.

It is an arithmetic number, because the mean of its divisors is an integer number (150149160).

Almost surely, 2^1815136104 is an apocalyptic number.

It is an amenable number.

1815136104 is an abundant number, since it is smaller than the sum of its proper divisors (2989637016).

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

1815136104 is a wasteful number, since it uses less digits than its factorization.

1815136104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448889 (or 4448885 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1815136104 is about 42604.4141375046. The cubic root of 1815136104 is about 1219.8405471082.

The spelling of 1815136104 in words is "one billion, eight hundred fifteen million, one hundred thirty-six thousand, one hundred four".