113471389 has 2 divisors, whose sum is σ = 113471390. Its totient is φ = 113471388.

The previous prime is 113471387. The next prime is 113471437. The reversal of 113471389 is 983174311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87796900 + 25674489 = 9370^2 + 5067^2 .

It is a cyclic number.

It is not a de Polignac number, because 113471389 - 2¹ = 113471387 is a prime.

It is a super-2 number, since 2×113471389² = 25751512243178642, which contains 22 as substring.

Together with 113471387, 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 (113471383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56735694 + 56735695.

It is an arithmetic number, because the mean of its divisors is an integer number (56735695).

Almost surely, 2^113471389 is an apocalyptic number.

It is an amenable number.

113471389 is a deficient number, since it is larger than the sum of its proper divisors (1).

113471389 is an equidigital number, since it uses as much as digits as its factorization.

113471389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 113471389 is about 10652.2950109354. The cubic root of 113471389 is about 484.1301430984.

The spelling of 113471389 in words is "one hundred thirteen million, four hundred seventy-one thousand, three hundred eighty-nine".