115573 has 4 divisors (see below), whose sum is σ = 118080. Its totient is φ = 113068.

The previous prime is 115571. The next prime is 115589. The reversal of 115573 is 375511.

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 115573 - 2¹ = 115571 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 (115571) 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, 1183 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (29520).

2¹¹⁵⁵⁷³ is an apocalyptic number.

It is an amenable number.

115573 is a deficient number, since it is larger than the sum of its proper divisors (2507).

115573 is an equidigital number, since it uses as much as digits as its factorization.

115573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506.

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

The square root of 115573 is about 339.9602917989. The cubic root of 115573 is about 48.7100746964.

The spelling of 115573 in words is "one hundred fifteen thousand, five hundred seventy-three".