115253993 has 4 divisors (see below), whose sum is σ = 118065108. Its totient is φ = 112442880.

The previous prime is 115253987. The next prime is 115254023. The reversal of 115253993 is 399352511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30558784 + 84695209 = 5528^2 + 9203^2 .

It is a cyclic number.

It is not a de Polignac number, because 115253993 - 2⁴ = 115253977 is a prime.

It is a super-3 number, since 3×115253993³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115253953) 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, 1405496 + ... + 1405577.

It is an arithmetic number, because the mean of its divisors is an integer number (29516277).

Almost surely, 2^115253993 is an apocalyptic number.

It is an amenable number.

115253993 is a deficient number, since it is larger than the sum of its proper divisors (2811115).

115253993 is an equidigital number, since it uses as much as digits as its factorization.

115253993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811114.

The product of its digits is 36450, while the sum is 38.

The square root of 115253993 is about 10735.6412477318. The cubic root of 115253993 is about 486.6521654423.

The spelling of 115253993 in words is "one hundred fifteen million, two hundred fifty-three thousand, nine hundred ninety-three".