113385218 has 4 divisors (see below), whose sum is σ = 170077830. Its totient is φ = 56692608.

The previous prime is 113385211. The next prime is 113385247. The reversal of 113385218 is 812583311.

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

It can be written as a sum of positive squares in only one way, i.e., 111999889 + 1385329 = 10583^2 + 1177^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113385211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28346303 + ... + 28346306.

Almost surely, 2^113385218 is an apocalyptic number.

113385218 is a deficient number, since it is larger than the sum of its proper divisors (56692612).

113385218 is an equidigital number, since it uses as much as digits as its factorization.

113385218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56692611.

The product of its digits is 5760, while the sum is 32.

The square root of 113385218 is about 10648.2495275045. The cubic root of 113385218 is about 484.0075614100.

The spelling of 113385218 in words is "one hundred thirteen million, three hundred eighty-five thousand, two hundred eighteen".