215200634 has 16 divisors (see below), whose sum is σ = 354684960. Its totient is φ = 97113360.

The previous prime is 215200591. The next prime is 215200651. The reversal of 215200634 is 436002512.

It is a super-2 number, since 2×215200634² = 92622625748003912, which contains 22 as substring.

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, 32129 + ... + 38244.

It is an arithmetic number, because the mean of its divisors is an integer number (22167810).

Almost surely, 2^215200634 is an apocalyptic number.

215200634 is a deficient number, since it is larger than the sum of its proper divisors (139484326).

215200634 is a wasteful number, since it uses less digits than its factorization.

215200634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70525.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 215200634 is about 14669.7182658700. The cubic root of 215200634 is about 599.2589313686.

The spelling of 215200634 in words is "two hundred fifteen million, two hundred thousand, six hundred thirty-four".