213307157 has 8 divisors (see below), whose sum is σ = 243959232. Its totient is φ = 182700000.

The previous prime is 213307147. The next prime is 213307231. The reversal of 213307157 is 751703312.

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

It is not a de Polignac number, because 213307157 - 2⁴ = 213307141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213307147) 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, 344 + ... + 20657.

It is an arithmetic number, because the mean of its divisors is an integer number (30494904).

Almost surely, 2^213307157 is an apocalyptic number.

It is an amenable number.

213307157 is a deficient number, since it is larger than the sum of its proper divisors (30652075).

213307157 is a wasteful number, since it uses less digits than its factorization.

213307157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22459.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 213307157 is about 14605.0387538000. The cubic root of 213307157 is about 597.4961929696.

The spelling of 213307157 in words is "two hundred thirteen million, three hundred seven thousand, one hundred fifty-seven".