125012547 has 12 divisors (see below), whose sum is σ = 196989624. Its totient is φ = 75765120.

The previous prime is 125012539. The next prime is 125012557. The reversal of 125012547 is 745210521.

It is not a de Polignac number, because 125012547 - 2³ = 125012539 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 125012547.

It is not an unprimeable number, because it can be changed into a prime (125012507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631278 + ... + 631475.

It is an arithmetic number, because the mean of its divisors is an integer number (16415802).

Almost surely, 2^125012547 is an apocalyptic number.

125012547 is a deficient number, since it is larger than the sum of its proper divisors (71977077).

125012547 is a wasteful number, since it uses less digits than its factorization.

125012547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262770 (or 1262767 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 125012547 is about 11180.9009923172. The cubic root of 125012547 is about 500.0167287736.

The spelling of 125012547 in words is "one hundred twenty-five million, twelve thousand, five hundred forty-seven".