125390871 has 24 divisors (see below), whose sum is σ = 192216960. Its totient is φ = 78596496.

The previous prime is 125390869. The next prime is 125390921. The reversal of 125390871 is 178093521.

It is not a de Polignac number, because 125390871 - 2¹ = 125390869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125390821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7080 + ... + 17346.

It is an arithmetic number, because the mean of its divisors is an integer number (8009040).

Almost surely, 2^125390871 is an apocalyptic number.

125390871 is a deficient number, since it is larger than the sum of its proper divisors (66826089).

125390871 is a wasteful number, since it uses less digits than its factorization.

125390871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10355 (or 10352 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 125390871 is about 11197.8065262800. The cubic root of 125390871 is about 500.5206190568.

The spelling of 125390871 in words is "one hundred twenty-five million, three hundred ninety thousand, eight hundred seventy-one".