125634 has 8 divisors (see below), whose sum is σ = 251280. Its totient is φ = 41876.

The previous prime is 125627. The next prime is 125639. The reversal of 125634 is 436521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

125634 is an admirable number.

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

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 125634.

It is not an unprimeable number, because it can be changed into a prime (125639) by changing a digit.

125634 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10464 + ... + 10475.

It is an arithmetic number, because the mean of its divisors is an integer number (31410).

2¹²⁵⁶³⁴ is an apocalyptic number.

125634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125634 is a wasteful number, since it uses less digits than its factorization.

125634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20944.

The product of its digits is 720, while the sum is 21.

The square root of 125634 is about 354.4488679626. The cubic root of 125634 is about 50.0843908170.

The spelling of 125634 in words is "one hundred twenty-five thousand, six hundred thirty-four".