213013394 has 8 divisors (see below), whose sum is σ = 348567408. Its totient is φ = 96824260.

The previous prime is 213013387. The next prime is 213013397. The reversal of 213013394 is 493310312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213013397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4841192 + ... + 4841235.

It is an arithmetic number, because the mean of its divisors is an integer number (43570926).

Almost surely, 2^213013394 is an apocalyptic number.

213013394 is a deficient number, since it is larger than the sum of its proper divisors (135554014).

213013394 is a wasteful number, since it uses less digits than its factorization.

213013394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9682440.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 213013394 is about 14594.9783829919. The cubic root of 213013394 is about 597.2217797498.

The spelling of 213013394 in words is "two hundred thirteen million, thirteen thousand, three hundred ninety-four".