113843869 has 2 divisors, whose sum is σ = 113843870. Its totient is φ = 113843868.

The previous prime is 113843843. The next prime is 113843881. The reversal of 113843869 is 968348311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84824100 + 29019769 = 9210^2 + 5387^2 .

It is a cyclic number.

It is not a de Polignac number, because 113843869 - 2⁵ = 113843837 is a prime.

It is a super-2 number, since 2×113843869² = 25920853017778322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113843069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56921934 + 56921935.

It is an arithmetic number, because the mean of its divisors is an integer number (56921935).

Almost surely, 2^113843869 is an apocalyptic number.

It is an amenable number.

113843869 is a deficient number, since it is larger than the sum of its proper divisors (1).

113843869 is an equidigital number, since it uses as much as digits as its factorization.

113843869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 113843869 is about 10669.7642429437. The cubic root of 113843869 is about 484.6592980427.

The spelling of 113843869 in words is "one hundred thirteen million, eight hundred forty-three thousand, eight hundred sixty-nine".