33245137 has 6 divisors (see below), whose sum is σ = 34077494. Its totient is φ = 32432640.

The previous prime is 33245131. The next prime is 33245141. The reversal of 33245137 is 73154233.

It can be written as a sum of positive squares in 3 ways, for example, as 1164241 + 32080896 = 1079^2 + 5664^2 .

It is not a de Polignac number, because 33245137 - 2²³ = 24856529 is a prime.

It is a super-2 number, since 2×33245137² = 2210478268297538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33245131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8208 + ... + 11569.

Almost surely, 2^33245137 is an apocalyptic number.

It is an amenable number.

33245137 is a deficient number, since it is larger than the sum of its proper divisors (832357).

33245137 is an equidigital number, since it uses as much as digits as its factorization.

33245137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19859 (or 19818 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 33245137 is about 5765.8596063380. The cubic root of 33245137 is about 321.5457020830.

The spelling of 33245137 in words is "thirty-three million, two hundred forty-five thousand, one hundred thirty-seven".