165033247 has 2 divisors, whose sum is σ = 165033248. Its totient is φ = 165033246.

The previous prime is 165033233. The next prime is 165033251. The reversal of 165033247 is 742330561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165033247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165033047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82516623 + 82516624.

It is an arithmetic number, because the mean of its divisors is an integer number (82516624).

Almost surely, 2^165033247 is an apocalyptic number.

165033247 is a deficient number, since it is larger than the sum of its proper divisors (1).

165033247 is an equidigital number, since it uses as much as digits as its factorization.

165033247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 165033247 is about 12846.5266512003. The cubic root of 165033247 is about 548.5174918325.

The spelling of 165033247 in words is "one hundred sixty-five million, thirty-three thousand, two hundred forty-seven".