33231089 has 2 divisors, whose sum is σ = 33231090. Its totient is φ = 33231088.

The previous prime is 33231061. The next prime is 33231109. The reversal of 33231089 is 98013233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25080064 + 8151025 = 5008^2 + 2855^2 .

It is a cyclic number.

It is not a de Polignac number, because 33231089 - 2²⁴ = 16453873 is a prime.

It is a super-2 number, since 2×33231089² = 2208610552251842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33231049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16615544 + 16615545.

It is an arithmetic number, because the mean of its divisors is an integer number (16615545).

Almost surely, 2^33231089 is an apocalyptic number.

It is an amenable number.

33231089 is a deficient number, since it is larger than the sum of its proper divisors (1).

33231089 is an equidigital number, since it uses as much as digits as its factorization.

33231089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 33231089 is about 5764.6412724471. The cubic root of 33231089 is about 321.5004051281.

The spelling of 33231089 in words is "thirty-three million, two hundred thirty-one thousand, eighty-nine".