213036903 has 12 divisors (see below), whose sum is σ = 310544520. Its totient is φ = 140720976.

The previous prime is 213036899. The next prime is 213036913. The reversal of 213036903 is 309630312.

It is not a de Polignac number, because 213036903 - 2² = 213036899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213036913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107601 + ... + 109562.

It is an arithmetic number, because the mean of its divisors is an integer number (25878710).

Almost surely, 2^213036903 is an apocalyptic number.

213036903 is a deficient number, since it is larger than the sum of its proper divisors (97507617).

213036903 is a wasteful number, since it uses less digits than its factorization.

213036903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217278 (or 217275 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 213036903 is about 14595.7837405190. The cubic root of 213036903 is about 597.2437495268.

The spelling of 213036903 in words is "two hundred thirteen million, thirty-six thousand, nine hundred three".