33139713 has 16 divisors (see below), whose sum is σ = 46678016. Its totient is φ = 20880720.

The previous prime is 33139709. The next prime is 33139723. The reversal of 33139713 is 31793133.

It is not a de Polignac number, because 33139713 - 2² = 33139709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33139703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145 + ... + 8142.

It is an arithmetic number, because the mean of its divisors is an integer number (2917376).

Almost surely, 2^33139713 is an apocalyptic number.

It is an amenable number.

33139713 is a deficient number, since it is larger than the sum of its proper divisors (13538303).

33139713 is a wasteful number, since it uses less digits than its factorization.

33139713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364.

The product of its digits is 5103, while the sum is 30.

The square root of 33139713 is about 5756.7102584723. The cubic root of 33139713 is about 321.2054565361.

The spelling of 33139713 in words is "thirty-three million, one hundred thirty-nine thousand, seven hundred thirteen".