115537 has 4 divisors (see below), whose sum is σ = 119296. Its totient is φ = 111780.

The previous prime is 115523. The next prime is 115547. The reversal of 115537 is 735511.

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.

It is a cyclic number.

It is not a de Polignac number, because 115537 - 2¹¹ = 113489 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 115537.

It is not an unprimeable number, because it can be changed into a prime (115547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833 + ... + 1894.

It is an arithmetic number, because the mean of its divisors is an integer number (29824).

2¹¹⁵⁵³⁷ is an apocalyptic number.

It is an amenable number.

115537 is a deficient number, since it is larger than the sum of its proper divisors (3759).

115537 is an equidigital number, since it uses as much as digits as its factorization.

115537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758.

The product of its digits is 525, while the sum is 22.

The square root of 115537 is about 339.9073403150. The cubic root of 115537 is about 48.7050165807.

The spelling of 115537 in words is "one hundred fifteen thousand, five hundred thirty-seven".