215125016 has 64 divisors (see below), whose sum is σ = 432432000. Its totient is φ = 100154880.

The previous prime is 215124989. The next prime is 215125037. The reversal of 215125016 is 610521512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 215124982 and 215125000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188446 + ... + 1188626.

It is an arithmetic number, because the mean of its divisors is an integer number (6756750).

Almost surely, 2^215125016 is an apocalyptic number.

It is an amenable number.

215125016 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

215125016 is a wasteful number, since it uses less digits than its factorization.

215125016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 215125016 is about 14667.1406893096. The cubic root of 215125016 is about 599.1887332010.

Adding to 215125016 its reverse (610521512), we get a palindrome (825646528).

The spelling of 215125016 in words is "two hundred fifteen million, one hundred twenty-five thousand, sixteen".