113224261 has 2 divisors, whose sum is σ = 113224262. Its totient is φ = 113224260.

The previous prime is 113224219. The next prime is 113224273. The reversal of 113224261 is 162422311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82919236 + 30305025 = 9106^2 + 5505^2 .

It is an emirp because it is prime and its reverse (162422311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113224261 - 2¹³ = 113216069 is a prime.

It is a super-2 number, since 2×113224261² = 25639466557992242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113224291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56612130 + 56612131.

It is an arithmetic number, because the mean of its divisors is an integer number (56612131).

Almost surely, 2^113224261 is an apocalyptic number.

It is an amenable number.

113224261 is a deficient number, since it is larger than the sum of its proper divisors (1).

113224261 is an equidigital number, since it uses as much as digits as its factorization.

113224261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 113224261 is about 10640.6889344628. The cubic root of 113224261 is about 483.7784271988.

Adding to 113224261 its reverse (162422311), we get a palindrome (275646572).

The spelling of 113224261 in words is "one hundred thirteen million, two hundred twenty-four thousand, two hundred sixty-one".