115653 has 8 divisors (see below), whose sum is σ = 162400. Its totient is φ = 73008.

The previous prime is 115637. The next prime is 115657. The reversal of 115653 is 356511.

It is a happy number.

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

It is not a de Polignac number, because 115653 - 2⁴ = 115637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 115653.

It is not an unprimeable number, because it can be changed into a prime (115657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958 + ... + 1071.

It is an arithmetic number, because the mean of its divisors is an integer number (20300).

2¹¹⁵⁶⁵³ is an apocalyptic number.

It is an amenable number.

115653 is a deficient number, since it is larger than the sum of its proper divisors (46747).

115653 is a wasteful number, since it uses less digits than its factorization.

115653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

The product of its digits is 450, while the sum is 21.

The square root of 115653 is about 340.0779322449. The cubic root of 115653 is about 48.7213111939.

The spelling of 115653 in words is "one hundred fifteen thousand, six hundred fifty-three".