113524381 has 2 divisors, whose sum is σ = 113524382. Its totient is φ = 113524380.

The previous prime is 113524379. The next prime is 113524391. The reversal of 113524381 is 183425311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87422500 + 26101881 = 9350^2 + 5109^2 .

It is an emirp because it is prime and its reverse (183425311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113524381 - 2¹ = 113524379 is a prime.

It is a super-2 number, since 2×113524381² = 25775570162866322, which contains 22 as substring.

Together with 113524379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113524321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56762190 + 56762191.

It is an arithmetic number, because the mean of its divisors is an integer number (56762191).

Almost surely, 2^113524381 is an apocalyptic number.

It is an amenable number.

113524381 is a deficient number, since it is larger than the sum of its proper divisors (1).

113524381 is an equidigital number, since it uses as much as digits as its factorization.

113524381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 113524381 is about 10654.7820719149. The cubic root of 113524381 is about 484.2054955201.

Adding to 113524381 its reverse (183425311), we get a palindrome (296949692).

The spelling of 113524381 in words is "one hundred thirteen million, five hundred twenty-four thousand, three hundred eighty-one".