113312729 has 4 divisors (see below), whose sum is σ = 113373876. Its totient is φ = 113251584.

The previous prime is 113312707. The next prime is 113312737. The reversal of 113312729 is 927213311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62047129 + 51265600 = 7877^2 + 7160^2 .

It is a cyclic number.

It is not a de Polignac number, because 113312729 - 2⁸ = 113312473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113332729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27704 + ... + 31529.

It is an arithmetic number, because the mean of its divisors is an integer number (28343469).

Almost surely, 2^113312729 is an apocalyptic number.

It is an amenable number.

113312729 is a deficient number, since it is larger than the sum of its proper divisors (61147).

113312729 is an equidigital number, since it uses as much as digits as its factorization.

113312729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61146.

The product of its digits is 2268, while the sum is 29.

The square root of 113312729 is about 10644.8451844073. The cubic root of 113312729 is about 483.9043948061.

The spelling of 113312729 in words is "one hundred thirteen million, three hundred twelve thousand, seven hundred twenty-nine".