125634369 has 48 divisors (see below), whose sum is σ = 206225408. Its totient is φ = 66624768.

The previous prime is 125634317. The next prime is 125634389. The reversal of 125634369 is 963436521.

It is not a de Polignac number, because 125634369 - 2⁹ = 125633857 is a prime.

It is a super-2 number, since 2×125634369² = 31567989348056322, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125634389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 770682 + ... + 770844.

Almost surely, 2^125634369 is an apocalyptic number.

It is an amenable number.

125634369 is a deficient number, since it is larger than the sum of its proper divisors (80591039).

125634369 is a wasteful number, since it uses less digits than its factorization.

125634369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 317 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 125634369 is about 11208.6738287810. The cubic root of 125634369 is about 500.8443985129.

The spelling of 125634369 in words is "one hundred twenty-five million, six hundred thirty-four thousand, three hundred sixty-nine".