635609113 has 2 divisors, whose sum is σ = 635609114. Its totient is φ = 635609112.

The previous prime is 635609063. The next prime is 635609123. The reversal of 635609113 is 311906536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 507285529 + 128323584 = 22523^2 + 11328^2 .

It is a cyclic number.

It is not a de Polignac number, because 635609113 - 2⁹ = 635608601 is a prime.

It is not a weakly prime, because it can be changed into another prime (635609123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317804556 + 317804557.

It is an arithmetic number, because the mean of its divisors is an integer number (317804557).

Almost surely, 2^635609113 is an apocalyptic number.

It is an amenable number.

635609113 is a deficient number, since it is larger than the sum of its proper divisors (1).

635609113 is an equidigital number, since it uses as much as digits as its factorization.

635609113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 635609113 is about 25211.2893958242. The cubic root of 635609113 is about 859.7985434918.

The spelling of 635609113 in words is "six hundred thirty-five million, six hundred nine thousand, one hundred thirteen".