115944137 has 4 divisors (see below), whose sum is σ = 122046480. Its totient is φ = 109841796.

The previous prime is 115944119. The next prime is 115944139. The reversal of 115944137 is 731449511.

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 a de Polignac number, because none of the positive numbers 2^k-115944137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115944097 and 115944106.

It is not an unprimeable number, because it can be changed into a prime (115944139) 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, 3051143 + ... + 3051180.

It is an arithmetic number, because the mean of its divisors is an integer number (30511620).

Almost surely, 2^115944137 is an apocalyptic number.

It is an amenable number.

115944137 is a deficient number, since it is larger than the sum of its proper divisors (6102343).

115944137 is an equidigital number, since it uses as much as digits as its factorization.

115944137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102342.

The product of its digits is 15120, while the sum is 35.

The square root of 115944137 is about 10767.7359272969. The cubic root of 115944137 is about 487.6215950904.

The spelling of 115944137 in words is "one hundred fifteen million, nine hundred forty-four thousand, one hundred thirty-seven".