113951489 has 2 divisors, whose sum is σ = 113951490. Its totient is φ = 113951488.

The previous prime is 113951471. The next prime is 113951491. The reversal of 113951489 is 984159311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59413264 + 54538225 = 7708^2 + 7385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113951489 is a prime.

Together with 113951491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113951689) 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, 56975744 + 56975745.

It is an arithmetic number, because the mean of its divisors is an integer number (56975745).

Almost surely, 2^113951489 is an apocalyptic number.

It is an amenable number.

113951489 is a deficient number, since it is larger than the sum of its proper divisors (1).

113951489 is an equidigital number, since it uses as much as digits as its factorization.

113951489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 41.

The square root of 113951489 is about 10674.8062745888. The cubic root of 113951489 is about 484.8119709005.

The spelling of 113951489 in words is "one hundred thirteen million, nine hundred fifty-one thousand, four hundred eighty-nine".