113531401 has 2 divisors, whose sum is σ = 113531402. Its totient is φ = 113531400.

The previous prime is 113531357. The next prime is 113531417. The reversal of 113531401 is 104135311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111281401 + 2250000 = 10549^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 113531401 - 2²⁵ = 79976969 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (113531471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56765700 + 56765701.

It is an arithmetic number, because the mean of its divisors is an integer number (56765701).

Almost surely, 2^113531401 is an apocalyptic number.

It is an amenable number.

113531401 is a deficient number, since it is larger than the sum of its proper divisors (1).

113531401 is an equidigital number, since it uses as much as digits as its factorization.

113531401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 113531401 is about 10655.1114963664. Note that the first 3 decimals coincide. The cubic root of 113531401 is about 484.2154759093.

Adding to 113531401 its reverse (104135311), we get a palindrome (217666712).

The spelling of 113531401 in words is "one hundred thirteen million, five hundred thirty-one thousand, four hundred one".