115770137 has 4 divisors (see below), whose sum is σ = 132308736. Its totient is φ = 99231540.

The previous prime is 115770121. The next prime is 115770163. The reversal of 115770137 is 731077511.

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 not a de Polignac number, because 115770137 - 2⁴ = 115770121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115770107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8269289 + ... + 8269302.

It is an arithmetic number, because the mean of its divisors is an integer number (33077184).

Almost surely, 2^115770137 is an apocalyptic number.

It is an amenable number.

115770137 is a deficient number, since it is larger than the sum of its proper divisors (16538599).

115770137 is an equidigital number, since it uses as much as digits as its factorization.

115770137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16538598.

The product of its (nonzero) digits is 5145, while the sum is 32.

The square root of 115770137 is about 10759.6532007310. The cubic root of 115770137 is about 487.3775446977.

The spelling of 115770137 in words is "one hundred fifteen million, seven hundred seventy thousand, one hundred thirty-seven".