115321993 has 8 divisors (see below), whose sum is σ = 116662208. Its totient is φ = 113986224.

The previous prime is 115321991. The next prime is 115322047. The reversal of 115321993 is 399123511.

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

It is a cyclic number.

It is not a de Polignac number, because 115321993 - 2¹ = 115321991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115321991) 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, 102130 + ... + 103252.

It is an arithmetic number, because the mean of its divisors is an integer number (14582776).

Almost surely, 2^115321993 is an apocalyptic number.

It is an amenable number.

115321993 is a deficient number, since it is larger than the sum of its proper divisors (1340215).

115321993 is a wasteful number, since it uses less digits than its factorization.

115321993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223.

The product of its digits is 7290, while the sum is 34.

The square root of 115321993 is about 10738.8078016137. The cubic root of 115321993 is about 486.7478550878.

The spelling of 115321993 in words is "one hundred fifteen million, three hundred twenty-one thousand, nine hundred ninety-three".