113361979 has 4 divisors (see below), whose sum is σ = 115773984. Its totient is φ = 110949976.

The previous prime is 113361977. The next prime is 113362013. The reversal of 113361979 is 979163311.

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

It is a cyclic number.

It is not a de Polignac number, because 113361979 - 2¹ = 113361977 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113361971) 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, 1205932 + ... + 1206025.

It is an arithmetic number, because the mean of its divisors is an integer number (28943496).

Almost surely, 2^113361979 is an apocalyptic number.

113361979 is a deficient number, since it is larger than the sum of its proper divisors (2412005).

113361979 is an equidigital number, since it uses as much as digits as its factorization.

113361979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412004.

The product of its digits is 30618, while the sum is 40.

The square root of 113361979 is about 10647.1582593667. The cubic root of 113361979 is about 483.9744923720.

It can be divided in two parts, 1133 and 61979, that multiplied together give a palindrome (70222207).

The spelling of 113361979 in words is "one hundred thirteen million, three hundred sixty-one thousand, nine hundred seventy-nine".