213038815 has 16 divisors (see below), whose sum is σ = 295293600. Its totient is φ = 145822720.

The previous prime is 213038809. The next prime is 213038821. The reversal of 213038815 is 518830312.

It is an interprime number because it is at equal distance from previous prime (213038809) and next prime (213038821).

It is not a de Polignac number, because 213038815 - 2⁵ = 213038783 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, 112990 + ... + 114859.

It is an arithmetic number, because the mean of its divisors is an integer number (18455850).

Almost surely, 2^213038815 is an apocalyptic number.

213038815 is a deficient number, since it is larger than the sum of its proper divisors (82254785).

213038815 is a wasteful number, since it uses less digits than its factorization.

213038815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227882.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 213038815 is about 14595.8492387391. The cubic root of 213038815 is about 597.2455362699.

The spelling of 213038815 in words is "two hundred thirteen million, thirty-eight thousand, eight hundred fifteen".