115942187 has 2 divisors, whose sum is σ = 115942188. Its totient is φ = 115942186.

The previous prime is 115942163. The next prime is 115942213. The reversal of 115942187 is 781249511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115942187 - 2¹² = 115938091 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115942187.

It is not a weakly prime, because it can be changed into another prime (115942487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57971093 + 57971094.

It is an arithmetic number, because the mean of its divisors is an integer number (57971094).

Almost surely, 2^115942187 is an apocalyptic number.

115942187 is a deficient number, since it is larger than the sum of its proper divisors (1).

115942187 is an equidigital number, since it uses as much as digits as its factorization.

115942187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 38.

The square root of 115942187 is about 10767.6453786332. The cubic root of 115942187 is about 487.6188613962.

The spelling of 115942187 in words is "one hundred fifteen million, nine hundred forty-two thousand, one hundred eighty-seven".