125415216 has 60 divisors (see below), whose sum is σ = 363999272. Its totient is φ = 41803776.

The previous prime is 125415193. The next prime is 125415217. The reversal of 125415216 is 612514521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 125415216.

It is not an unprimeable number, because it can be changed into a prime (125415217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12241 + ... + 20016.

Almost surely, 2^125415216 is an apocalyptic number.

125415216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125415216 is an abundant number, since it is smaller than the sum of its proper divisors (238584056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125415216 is an equidigital number, since it uses as much as digits as its factorization.

125415216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32280 (or 32262 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 125415216 is about 11198.8935167721. The cubic root of 125415216 is about 500.5530094689.

Adding to 125415216 its reverse (612514521), we get a palindrome (737929737).

The spelling of 125415216 in words is "one hundred twenty-five million, four hundred fifteen thousand, two hundred sixteen".