115743931 has 4 divisors (see below), whose sum is σ = 116011672. Its totient is φ = 115476192.

The previous prime is 115743923. The next prime is 115743949. The reversal of 115743931 is 139347511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115743931 - 2³ = 115743923 is a prime.

It is a super-2 number, since 2×115743931² = 26793315126665522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115743911) 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, 133221 + ... + 134086.

It is an arithmetic number, because the mean of its divisors is an integer number (29002918).

Almost surely, 2^115743931 is an apocalyptic number.

115743931 is a deficient number, since it is larger than the sum of its proper divisors (267741).

115743931 is an equidigital number, since it uses as much as digits as its factorization.

115743931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267740.

The product of its digits is 11340, while the sum is 34.

The square root of 115743931 is about 10758.4353416284. The cubic root of 115743931 is about 487.3407672808.

The spelling of 115743931 in words is "one hundred fifteen million, seven hundred forty-three thousand, nine hundred thirty-one".