33131090 has 8 divisors (see below), whose sum is σ = 59635980. Its totient is φ = 13252432.

The previous prime is 33131089. The next prime is 33131107. The reversal of 33131090 is 9013133.

It can be written as a sum of positive squares in 2 ways, for example, as 33051001 + 80089 = 5749^2 + 283^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656545 + ... + 1656564.

Almost surely, 2^33131090 is an apocalyptic number.

33131090 is a deficient number, since it is larger than the sum of its proper divisors (26504890).

33131090 is a wasteful number, since it uses less digits than its factorization.

33131090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313116.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 33131090 is about 5755.9612576875. The cubic root of 33131090 is about 321.1775947486.

The spelling of 33131090 in words is "thirty-three million, one hundred thirty-one thousand, ninety".