113142309 has 8 divisors (see below), whose sum is σ = 172407360. Its totient is φ = 64652736.

The previous prime is 113142287. The next prime is 113142319. The reversal of 113142309 is 903241311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113142309 - 2⁵ = 113142277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113142319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2693844 + ... + 2693885.

It is an arithmetic number, because the mean of its divisors is an integer number (21550920).

Almost surely, 2^113142309 is an apocalyptic number.

It is an amenable number.

113142309 is a deficient number, since it is larger than the sum of its proper divisors (59265051).

113142309 is an equidigital number, since it uses as much as digits as its factorization.

113142309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387739.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 113142309 is about 10636.8373589145. The cubic root of 113142309 is about 483.6616790196.

The spelling of 113142309 in words is "one hundred thirteen million, one hundred forty-two thousand, three hundred nine".