213115168 has 24 divisors (see below), whose sum is σ = 479509632. Its totient is φ = 91334976.

The previous prime is 213115159. The next prime is 213115169. The reversal of 213115168 is 861511312.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (213115169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475480 + ... + 475927.

It is an arithmetic number, because the mean of its divisors is an integer number (19979568).

Almost surely, 2^213115168 is an apocalyptic number.

213115168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213115168 is an abundant number, since it is smaller than the sum of its proper divisors (266394464).

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

213115168 is an equidigital number, since it uses as much as digits as its factorization.

213115168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951424 (or 951416 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 213115168 is about 14598.4645767971. The cubic root of 213115168 is about 597.3168785770.

The spelling of 213115168 in words is "two hundred thirteen million, one hundred fifteen thousand, one hundred sixty-eight".