33131022 has 16 divisors (see below), whose sum is σ = 69749760. Its totient is φ = 10462392.

The previous prime is 33130997. The next prime is 33131023. The reversal of 33131022 is 22013133.

It is a junction number, because it is equal to n+sod(n) for n = 33130992 and 33131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33131023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 145198 + ... + 145425.

It is an arithmetic number, because the mean of its divisors is an integer number (4359360).

Almost surely, 2^33131022 is an apocalyptic number.

33131022 is an abundant number, since it is smaller than the sum of its proper divisors (36618738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33131022 is a wasteful number, since it uses less digits than its factorization.

33131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290647.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 33131022 is about 5755.9553507650. The cubic root of 33131022 is about 321.1773750145.

Adding to 33131022 its reverse (22013133), we get a palindrome (55144155).

The spelling of 33131022 in words is "thirty-three million, one hundred thirty-one thousand, twenty-two".