113209601 has 2 divisors, whose sum is σ = 113209602. Its totient is φ = 113209600.

The previous prime is 113209597. The next prime is 113209609. The reversal of 113209601 is 106902311.

It is a happy number.

It is a Cunningham number, because it is equal to 10640²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113209600 + 1 = 10640^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 113209601 - 2² = 113209597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (113209609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56604800 + 56604801.

It is an arithmetic number, because the mean of its divisors is an integer number (56604801).

Almost surely, 2^113209601 is an apocalyptic number.

It is an amenable number.

113209601 is a deficient number, since it is larger than the sum of its proper divisors (1).

113209601 is an equidigital number, since it uses as much as digits as its factorization.

113209601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 113209601 is about 10640.0000469925. Note that the first 4 decimals coincide. The cubic root of 113209601 is about 483.7575468157.

The spelling of 113209601 in words is "one hundred thirteen million, two hundred nine thousand, six hundred one".