113522201 has 6 divisors (see below), whose sum is σ = 122926590. Its totient is φ = 104789568.

The previous prime is 113522197. The next prime is 113522203. The reversal of 113522201 is 102225311.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 78400 + 113443801 = 280^2 + 10651^2 .

It is not a de Polignac number, because 113522201 - 2² = 113522197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113522201.

It is not an unprimeable number, because it can be changed into a prime (113522203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335696 + ... + 336033.

It is an arithmetic number, because the mean of its divisors is an integer number (20487765).

Almost surely, 2^113522201 is an apocalyptic number.

It is an amenable number.

113522201 is a deficient number, since it is larger than the sum of its proper divisors (9404389).

113522201 is an equidigital number, since it uses as much as digits as its factorization.

113522201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671755 (or 671742 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 113522201 is about 10654.6797699415. The cubic root of 113522201 is about 484.2023961132.

Adding to 113522201 its reverse (102225311), we get a palindrome (215747512).

The spelling of 113522201 in words is "one hundred thirteen million, five hundred twenty-two thousand, two hundred one".