33139151 has 4 divisors (see below), whose sum is σ = 33764472. Its totient is φ = 32513832.

The previous prime is 33139147. The next prime is 33139163. The reversal of 33139151 is 15193133.

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

It is a cyclic number.

It is not a de Polignac number, because 33139151 - 2² = 33139147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33139151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33139121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312581 + ... + 312686.

It is an arithmetic number, because the mean of its divisors is an integer number (8441118).

Almost surely, 2^33139151 is an apocalyptic number.

33139151 is a deficient number, since it is larger than the sum of its proper divisors (625321).

33139151 is an equidigital number, since it uses as much as digits as its factorization.

33139151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625320.

The product of its digits is 1215, while the sum is 26.

The square root of 33139151 is about 5756.6614456645. The cubic root of 33139151 is about 321.2036408043.

The spelling of 33139151 in words is "thirty-three million, one hundred thirty-nine thousand, one hundred fifty-one".