115156243 has 2 divisors, whose sum is σ = 115156244. Its totient is φ = 115156242.

The previous prime is 115156241. The next prime is 115156253. The reversal of 115156243 is 342651511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115156243 - 2¹ = 115156241 is a prime.

Together with 115156241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115156241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57578121 + 57578122.

It is an arithmetic number, because the mean of its divisors is an integer number (57578122).

Almost surely, 2^115156243 is an apocalyptic number.

115156243 is a deficient number, since it is larger than the sum of its proper divisors (1).

115156243 is an equidigital number, since it uses as much as digits as its factorization.

115156243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 115156243 is about 10731.0876895122. The cubic root of 115156243 is about 486.5145456144.

The spelling of 115156243 in words is "one hundred fifteen million, one hundred fifty-six thousand, two hundred forty-three".