113155243 has 2 divisors, whose sum is σ = 113155244. Its totient is φ = 113155242.

The previous prime is 113155199. The next prime is 113155261. The reversal of 113155243 is 342551311.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (342551311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113155243 - 2⁹ = 113154731 is a prime.

It is not a weakly prime, because it can be changed into another prime (113155283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56577621 + 56577622.

It is an arithmetic number, because the mean of its divisors is an integer number (56577622).

Almost surely, 2^113155243 is an apocalyptic number.

113155243 is a deficient number, since it is larger than the sum of its proper divisors (1).

113155243 is an equidigital number, since it uses as much as digits as its factorization.

113155243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 113155243 is about 10637.4453230087. The cubic root of 113155243 is about 483.6801084408.

The spelling of 113155243 in words is "one hundred thirteen million, one hundred fifty-five thousand, two hundred forty-three".