213625078 has 16 divisors (see below), whose sum is σ = 336440880. Its totient is φ = 101588256.

The previous prime is 213625063. The next prime is 213625091. The reversal of 213625078 is 870526312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23601 + ... + 31372.

It is an arithmetic number, because the mean of its divisors is an integer number (21027555).

Almost surely, 2^213625078 is an apocalyptic number.

213625078 is a deficient number, since it is larger than the sum of its proper divisors (122815802).

213625078 is a wasteful number, since it uses less digits than its factorization.

213625078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55071.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 213625078 is about 14615.9186505673. The cubic root of 213625078 is about 597.7928892066.

The spelling of 213625078 in words is "two hundred thirteen million, six hundred twenty-five thousand, seventy-eight".