215125832 has 8 divisors (see below), whose sum is σ = 403360950. Its totient is φ = 107562912.

The previous prime is 215125829. The next prime is 215125849. The reversal of 215125832 is 238521512.

It can be written as a sum of positive squares in only one way, i.e., 186759556 + 28366276 = 13666^2 + 5326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 215125795 and 215125804.

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 as a sum of consecutive naturals, namely, 13445357 + ... + 13445372.

Almost surely, 2^215125832 is an apocalyptic number.

It is an amenable number.

215125832 is a deficient number, since it is larger than the sum of its proper divisors (188235118).

215125832 is a wasteful number, since it uses less digits than its factorization.

215125832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26890735 (or 26890731 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 215125832 is about 14667.1685065659. The cubic root of 215125832 is about 599.1894908029.

The spelling of 215125832 in words is "two hundred fifteen million, one hundred twenty-five thousand, eight hundred thirty-two".