213395250 has 32 divisors (see below), whose sum is σ = 532636416. Its totient is φ = 56905200.

The previous prime is 213395177. The next prime is 213395261. The reversal of 213395250 is 52593312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 141514 + ... + 143013.

It is an arithmetic number, because the mean of its divisors is an integer number (16644888).

Almost surely, 2^213395250 is an apocalyptic number.

213395250 is an abundant number, since it is smaller than the sum of its proper divisors (319241166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213395250 is a wasteful number, since it uses less digits than its factorization.

213395250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284547 (or 284537 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 213395250 is about 14608.0542852222. The cubic root of 213395250 is about 597.5784342918.

The spelling of 213395250 in words is "two hundred thirteen million, three hundred ninety-five thousand, two hundred fifty".