213725835 has 12 divisors (see below), whose sum is σ = 370458192. Its totient is φ = 113987088.

The previous prime is 213725807. The next prime is 213725843. The reversal of 213725835 is 538527312.

It is a happy number.

213725835 is a `hidden beast` number, since 2 + 1 + 3 + 72 + 583 + 5 = 666.

It is not a de Polignac number, because 213725835 - 2⁵ = 213725803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213725835.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2374687 + ... + 2374776.

It is an arithmetic number, because the mean of its divisors is an integer number (30871516).

Almost surely, 2^213725835 is an apocalyptic number.

213725835 is a deficient number, since it is larger than the sum of its proper divisors (156732357).

213725835 is a wasteful number, since it uses less digits than its factorization.

213725835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749474 (or 4749471 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 213725835 is about 14619.3650682921. The cubic root of 213725835 is about 597.8868581227.

It can be divided in two parts, 2137 and 25835, that added together give a palindrome (27972).

The spelling of 213725835 in words is "two hundred thirteen million, seven hundred twenty-five thousand, eight hundred thirty-five".