113223251 has 4 divisors (see below), whose sum is σ = 113256504. Its totient is φ = 113190000.

The previous prime is 113223217. The next prime is 113223277. The reversal of 113223251 is 152322311.

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-113223251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113223151) 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 in 3 ways as a sum of consecutive naturals, for example, 10850 + ... + 18551.

It is an arithmetic number, because the mean of its divisors is an integer number (28314126).

Almost surely, 2^113223251 is an apocalyptic number.

113223251 is a deficient number, since it is larger than the sum of its proper divisors (33253).

113223251 is an equidigital number, since it uses as much as digits as its factorization.

113223251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33252.

The product of its digits is 360, while the sum is 20.

The square root of 113223251 is about 10640.6414750240. The cubic root of 113223251 is about 483.7769887036.

Adding to 113223251 its reverse (152322311), we get a palindrome (265545562).

The spelling of 113223251 in words is "one hundred thirteen million, two hundred twenty-three thousand, two hundred fifty-one".