113222309 has 2 divisors, whose sum is σ = 113222310. Its totient is φ = 113222308.

The previous prime is 113222299. The next prime is 113222327. The reversal of 113222309 is 903222311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76073284 + 37149025 = 8722^2 + 6095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113222309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113222359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56611154 + 56611155.

It is an arithmetic number, because the mean of its divisors is an integer number (56611155).

Almost surely, 2^113222309 is an apocalyptic number.

It is an amenable number.

113222309 is a deficient number, since it is larger than the sum of its proper divisors (1).

113222309 is an equidigital number, since it uses as much as digits as its factorization.

113222309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 113222309 is about 10640.5972106832. The cubic root of 113222309 is about 483.7756470499.

It can be divided in two parts, 11322 and 2309, that added together give a palindrome (13631).

The spelling of 113222309 in words is "one hundred thirteen million, two hundred twenty-two thousand, three hundred nine".