213902 has 16 divisors (see below), whose sum is σ = 364560. Its totient is φ = 93312.

The previous prime is 213901. The next prime is 213919. The reversal of 213902 is 209312.

213902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 213902.

It is not an unprimeable number, because it can be changed into a prime (213901) 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, 278 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (22785).

2²¹³⁹⁰² is an apocalyptic number.

213902 is a deficient number, since it is larger than the sum of its proper divisors (150658).

213902 is a wasteful number, since it uses less digits than its factorization.

213902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 213902 is about 462.4954053826. The cubic root of 213902 is about 59.8051083804.

The spelling of 213902 in words is "two hundred thirteen thousand, nine hundred two".