113471639 has 2 divisors, whose sum is σ = 113471640. Its totient is φ = 113471638.

The previous prime is 113471623. The next prime is 113471647. The reversal of 113471639 is 936174311.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (936174311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113471639 - 2⁴ = 113471623 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 113471599 and 113471608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113471339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56735819 + 56735820.

It is an arithmetic number, because the mean of its divisors is an integer number (56735820).

Almost surely, 2^113471639 is an apocalyptic number.

113471639 is a deficient number, since it is larger than the sum of its proper divisors (1).

113471639 is an equidigital number, since it uses as much as digits as its factorization.

113471639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 113471639 is about 10652.3067454894. The cubic root of 113471639 is about 484.1304986430.

The spelling of 113471639 in words is "one hundred thirteen million, four hundred seventy-one thousand, six hundred thirty-nine".