125388436 has 6 divisors (see below), whose sum is σ = 219429770. Its totient is φ = 62694216.

The previous prime is 125388421. The next prime is 125388457. The reversal of 125388436 is 634883521.

It can be written as a sum of positive squares in only one way, i.e., 79744900 + 45643536 = 8930^2 + 6756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15673551 + ... + 15673558.

Almost surely, 2^125388436 is an apocalyptic number.

It is an amenable number.

125388436 is a deficient number, since it is larger than the sum of its proper divisors (94041334).

125388436 is a wasteful number, since it uses less digits than its factorization.

125388436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31347113 (or 31347111 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 125388436 is about 11197.6977991014. The cubic root of 125388436 is about 500.5173791197.

The spelling of 125388436 in words is "one hundred twenty-five million, three hundred eighty-eight thousand, four hundred thirty-six".