125387664 has 20 divisors (see below), whose sum is σ = 323918256. Its totient is φ = 41795872.

The previous prime is 125387663. The next prime is 125387671. The reversal of 125387664 is 466783521.

It is not an unprimeable number, because it can be changed into a prime (125387663) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1306074 + ... + 1306169.

Almost surely, 2^125387664 is an apocalyptic number.

It is an amenable number.

125387664 is an abundant number, since it is smaller than the sum of its proper divisors (198530592).

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

125387664 is a wasteful number, since it uses less digits than its factorization.

125387664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612254 (or 2612248 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 125387664 is about 11197.6633276769. The cubic root of 125387664 is about 500.5163519112.

It can be divided in two parts, 12538 and 7664, that added together give a palindrome (20202).

The spelling of 125387664 in words is "one hundred twenty-five million, three hundred eighty-seven thousand, six hundred sixty-four".