125270816 has 36 divisors (see below), whose sum is σ = 271094166. Its totient is φ = 56939520.

The previous prime is 125270813. The next prime is 125270833. The reversal of 125270816 is 618072521.

It can be written as a sum of positive squares in only one way, i.e., 84566416 + 40704400 = 9196^2 + 6380^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (125270813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12305 + ... + 20048.

Almost surely, 2^125270816 is an apocalyptic number.

125270816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125270816 is an abundant number, since it is smaller than the sum of its proper divisors (145823350).

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

125270816 is a wasteful number, since it uses less digits than its factorization.

125270816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32385 (or 32366 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 125270816 is about 11192.4445944575. Note that the first 3 decimals coincide. The cubic root of 125270816 is about 500.3608275443.

The spelling of 125270816 in words is "one hundred twenty-five million, two hundred seventy thousand, eight hundred sixteen".