213314815 has 16 divisors (see below), whose sum is σ = 292819968. Its totient is φ = 146136096.

The previous prime is 213314809. The next prime is 213314839. The reversal of 213314815 is 518413312.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213314815 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47664 + ... + 51946.

It is an arithmetic number, because the mean of its divisors is an integer number (18301248).

Almost surely, 2^213314815 is an apocalyptic number.

213314815 is a deficient number, since it is larger than the sum of its proper divisors (79505153).

213314815 is a wasteful number, since it uses less digits than its factorization.

213314815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718.

The product of its digits is 2880, while the sum is 28.

The square root of 213314815 is about 14605.3009212409. The cubic root of 213314815 is about 597.5033431767.

The spelling of 213314815 in words is "two hundred thirteen million, three hundred fourteen thousand, eight hundred fifteen".