33000131 has 4 divisors (see below), whose sum is σ = 34737000. Its totient is φ = 31263264.

The previous prime is 33000127. The next prime is 33000133. The reversal of 33000131 is 13100033.

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 33000131 - 2² = 33000127 is a prime.

It is a super-2 number, since 2×33000131² = 2178017292034322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33000133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868406 + ... + 868443.

It is an arithmetic number, because the mean of its divisors is an integer number (8684250).

Almost surely, 2^33000131 is an apocalyptic number.

33000131 is a deficient number, since it is larger than the sum of its proper divisors (1736869).

33000131 is a wasteful number, since it uses less digits than its factorization.

33000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736868.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 33000131 is about 5744.5740486132. The cubic root of 33000131 is about 320.7538574303.

Adding to 33000131 its reverse (13100033), we get a palindrome (46100164).

The spelling of 33000131 in words is "thirty-three million, one hundred thirty-one", and thus it is an aban number.