125653 has 4 divisors (see below), whose sum is σ = 137088. Its totient is φ = 114220.

The previous prime is 125651. The next prime is 125659. The reversal of 125653 is 356521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 356521 = 11 ⋅32411.

It is a cyclic number.

It is not a de Polignac number, because 125653 - 2¹ = 125651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701 + ... + 5722.

It is an arithmetic number, because the mean of its divisors is an integer number (34272).

2¹²⁵⁶⁵³ is an apocalyptic number.

It is an amenable number.

125653 is a deficient number, since it is larger than the sum of its proper divisors (11435).

125653 is a wasteful number, since it uses less digits than its factorization.

125653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434.

The product of its digits is 900, while the sum is 22.

The square root of 125653 is about 354.4756691227. The cubic root of 125653 is about 50.0869154931.

It can be divided in two parts, 12 and 5653, that added together give a palindrome (5665).

The spelling of 125653 in words is "one hundred twenty-five thousand, six hundred fifty-three".