813618162 has 32 divisors (see below), whose sum is σ = 2066332800. Its totient is φ = 232462224.

The previous prime is 813618161. The next prime is 813618163. The reversal of 813618162 is 261816318.

It is an interprime number because it is at equal distance from previous prime (813618161) and next prime (813618163).

It is not an unprimeable number, because it can be changed into a prime (813618161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075837 + ... + 1076592.

It is an arithmetic number, because the mean of its divisors is an integer number (64572900).

Almost surely, 2^813618162 is an apocalyptic number.

813618162 is an abundant number, since it is smaller than the sum of its proper divisors (1252714638).

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

813618162 is a wasteful number, since it uses less digits than its factorization.

813618162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152447 (or 2152441 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 813618162 is about 28523.9927429524. The cubic root of 813618162 is about 933.5556496203. Note that the first 3 decimals are identical.

The spelling of 813618162 in words is "eight hundred thirteen million, six hundred eighteen thousand, one hundred sixty-two".