115083993 has 4 divisors (see below), whose sum is σ = 153445328. Its totient is φ = 76722660.

The previous prime is 115083979. The next prime is 115084037. The reversal of 115083993 is 399380511.

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: 399380511 = 3 ⋅133126837.

It is not a de Polignac number, because 115083993 - 2⁶ = 115083929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115083923) 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, 19180663 + ... + 19180668.

It is an arithmetic number, because the mean of its divisors is an integer number (38361332).

Almost surely, 2^115083993 is an apocalyptic number.

It is an amenable number.

115083993 is a deficient number, since it is larger than the sum of its proper divisors (38361335).

115083993 is an equidigital number, since it uses as much as digits as its factorization.

115083993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38361334.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 115083993 is about 10727.7207737711. The cubic root of 115083993 is about 486.4127765487.

The spelling of 115083993 in words is "one hundred fifteen million, eighty-three thousand, nine hundred ninety-three".