215741364 has 12 divisors (see below), whose sum is σ = 503396544. Its totient is φ = 71913784.

The previous prime is 215741359. The next prime is 215741387. The reversal of 215741364 is 463147512.

215741364 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×215741364² = 93088672281160992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8989212 + ... + 8989235.

It is an arithmetic number, because the mean of its divisors is an integer number (41949712).

Almost surely, 2^215741364 is an apocalyptic number.

It is an amenable number.

215741364 is an abundant number, since it is smaller than the sum of its proper divisors (287655180).

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

215741364 is a wasteful number, since it uses less digits than its factorization.

215741364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17978454 (or 17978452 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 215741364 is about 14688.1368457677. The cubic root of 215741364 is about 599.7604265759.

Adding to 215741364 its reverse (463147512), we get a palindrome (678888876).

The spelling of 215741364 in words is "two hundred fifteen million, seven hundred forty-one thousand, three hundred sixty-four".