33572131 has 2 divisors, whose sum is σ = 33572132. Its totient is φ = 33572130.

The previous prime is 33572117. The next prime is 33572141. The reversal of 33572131 is 13127533.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33572131 - 2⁹ = 33571619 is a prime.

It is a super-2 number, since 2×33572131² = 2254175959762322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33572096 and 33572105.

It is not a weakly prime, because it can be changed into another prime (33572141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16786065 + 16786066.

It is an arithmetic number, because the mean of its divisors is an integer number (16786066).

Almost surely, 2^33572131 is an apocalyptic number.

33572131 is a deficient number, since it is larger than the sum of its proper divisors (1).

33572131 is an equidigital number, since it uses as much as digits as its factorization.

33572131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 25.

The square root of 33572131 is about 5794.1462701592. The cubic root of 33572131 is about 322.5964889660.

Adding to 33572131 its reverse (13127533), we get a palindrome (46699664).

The spelling of 33572131 in words is "thirty-three million, five hundred seventy-two thousand, one hundred thirty-one".