213415144 has 32 divisors (see below), whose sum is σ = 445996800. Its totient is φ = 95143680.

The previous prime is 213415141. The next prime is 213415157. The reversal of 213415144 is 441514312.

213415144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213415141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38712 + ... + 43879.

It is an arithmetic number, because the mean of its divisors is an integer number (13937400).

Almost surely, 2^213415144 is an apocalyptic number.

It is an amenable number.

213415144 is an abundant number, since it is smaller than the sum of its proper divisors (232581656).

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

213415144 is a wasteful number, since it uses less digits than its factorization.

213415144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82633 (or 82629 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 213415144 is about 14608.7351950811. The cubic root of 213415144 is about 597.5970036773.

Adding to 213415144 its reverse (441514312), we get a palindrome (654929456).

The spelling of 213415144 in words is "two hundred thirteen million, four hundred fifteen thousand, one hundred forty-four".