113521207 has 2 divisors, whose sum is σ = 113521208. Its totient is φ = 113521206.

The previous prime is 113521201. The next prime is 113521241. The reversal of 113521207 is 702125311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113521207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113521201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56760603 + 56760604.

It is an arithmetic number, because the mean of its divisors is an integer number (56760604).

Almost surely, 2^113521207 is an apocalyptic number.

113521207 is a deficient number, since it is larger than the sum of its proper divisors (1).

113521207 is an equidigital number, since it uses as much as digits as its factorization.

113521207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 113521207 is about 10654.6331236697. The cubic root of 113521207 is about 484.2009828843.

Adding to 113521207 its reverse (702125311), we get a palindrome (815646518).

The spelling of 113521207 in words is "one hundred thirteen million, five hundred twenty-one thousand, two hundred seven".