113418919 has 4 divisors (see below), whose sum is σ = 114785496. Its totient is φ = 112052344.

The previous prime is 113418881. The next prime is 113418937. The reversal of 113418919 is 919814311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113418919 is a prime.

It is a super-2 number, since 2×113418919² = 25727702374257122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113418979) 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, 683164 + ... + 683329.

It is an arithmetic number, because the mean of its divisors is an integer number (28696374).

Almost surely, 2^113418919 is an apocalyptic number.

113418919 is a deficient number, since it is larger than the sum of its proper divisors (1366577).

113418919 is an equidigital number, since it uses as much as digits as its factorization.

113418919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366576.

The product of its digits is 7776, while the sum is 37.

The square root of 113418919 is about 10649.8318766073. The cubic root of 113418919 is about 484.0555098208.

The spelling of 113418919 in words is "one hundred thirteen million, four hundred eighteen thousand, nine hundred nineteen".