33139141 has 12 divisors (see below), whose sum is σ = 39880620. Its totient is φ = 27424320.

The previous prime is 33139123. The next prime is 33139147. The reversal of 33139141 is 14193133.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 16769025 = 4046^2 + 4095^2 .

It is not a de Polignac number, because 33139141 - 2⁹ = 33138629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33139147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10240 + ... + 13081.

It is an arithmetic number, because the mean of its divisors is an integer number (3323385).

Almost surely, 2^33139141 is an apocalyptic number.

It is an amenable number.

33139141 is a deficient number, since it is larger than the sum of its proper divisors (6741479).

33139141 is a wasteful number, since it uses less digits than its factorization.

33139141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23364 (or 23357 counting only the distinct ones).

The product of its digits is 972, while the sum is 25.

The square root of 33139141 is about 5756.6605771054. The cubic root of 33139141 is about 321.2036084957.

The spelling of 33139141 in words is "thirty-three million, one hundred thirty-nine thousand, one hundred forty-one".