125749908 has 30 divisors (see below), whose sum is σ = 328735946. Its totient is φ = 41916528.

The previous prime is 125749889. The next prime is 125749937. The reversal of 125749908 is 809947521.

It can be written as a sum of positive squares in only one way, i.e., 77475204 + 48274704 = 8802^2 + 6948^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 193735 + ... + 194382.

Almost surely, 2^125749908 is an apocalyptic number.

125749908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

125749908 is an abundant number, since it is smaller than the sum of its proper divisors (202986038).

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

125749908 is a wasteful number, since it uses less digits than its factorization.

125749908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388133 (or 388122 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 125749908 is about 11213.8266439249. The cubic root of 125749908 is about 500.9978844616.

The spelling of 125749908 in words is "one hundred twenty-five million, seven hundred forty-nine thousand, nine hundred eight".