33140131 has 4 divisors (see below), whose sum is σ = 33244992. Its totient is φ = 33035272.

The previous prime is 33140117. The next prime is 33140153. The reversal of 33140131 is 13104133.

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 33140131 - 2⁵ = 33140099 is a prime.

It is a super-2 number, since 2×33140131² = 2196536565394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33140111) 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, 51955 + ... + 52588.

It is an arithmetic number, because the mean of its divisors is an integer number (8311248).

Almost surely, 2^33140131 is an apocalyptic number.

33140131 is a deficient number, since it is larger than the sum of its proper divisors (104861).

33140131 is a wasteful number, since it uses less digits than its factorization.

33140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104860.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 33140131 is about 5756.7465638154. The cubic root of 33140131 is about 321.2068070136.

Adding to 33140131 its reverse (13104133), we get a palindrome (46244264).

The spelling of 33140131 in words is "thirty-three million, one hundred forty thousand, one hundred thirty-one".