113220949 has 2 divisors, whose sum is σ = 113220950. Its totient is φ = 113220948.

The previous prime is 113220937. The next prime is 113220971. The reversal of 113220949 is 949022311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67076100 + 46144849 = 8190^2 + 6793^2 .

It is a cyclic number.

It is not a de Polignac number, because 113220949 - 2¹¹ = 113218901 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113220949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113220929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610474 + 56610475.

It is an arithmetic number, because the mean of its divisors is an integer number (56610475).

Almost surely, 2^113220949 is an apocalyptic number.

It is an amenable number.

113220949 is a deficient number, since it is larger than the sum of its proper divisors (1).

113220949 is an equidigital number, since it uses as much as digits as its factorization.

113220949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 113220949 is about 10640.5333043039. The cubic root of 113220949 is about 483.7737100420.

The spelling of 113220949 in words is "one hundred thirteen million, two hundred twenty thousand, nine hundred forty-nine".