115156242 has 24 divisors (see below), whose sum is σ = 258747216. Its totient is φ = 38385252.

The previous prime is 115156241. The next prime is 115156243. The reversal of 115156242 is 242651511.

115156242 is a `hidden beast` number, since 11 + 51 + 562 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (115156241) and next prime (115156243).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115156241) 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 11 ways as a sum of consecutive naturals, for example, 117988 + ... + 118959.

It is an arithmetic number, because the mean of its divisors is an integer number (10781134).

Almost surely, 2^115156242 is an apocalyptic number.

115156242 is an abundant number, since it is smaller than the sum of its proper divisors (143590974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115156242 is an equidigital number, since it uses as much as digits as its factorization.

115156242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236964 (or 236952 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 115156242 is about 10731.0876429186. The cubic root of 115156242 is about 486.5145442061.

The spelling of 115156242 in words is "one hundred fifteen million, one hundred fifty-six thousand, two hundred forty-two".