165005151 has 24 divisors (see below), whose sum is σ = 231702576. Its totient is φ = 104438400.

The previous prime is 165005143. The next prime is 165005161. The reversal of 165005151 is 151500561.

It is not a de Polignac number, because 165005151 - 2³ = 165005143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165005161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274251 + ... + 274851.

It is an arithmetic number, because the mean of its divisors is an integer number (9654274).

Almost surely, 2^165005151 is an apocalyptic number.

165005151 is a deficient number, since it is larger than the sum of its proper divisors (66697425).

165005151 is a wasteful number, since it uses less digits than its factorization.

165005151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 165005151 is about 12845.4330795034. The cubic root of 165005151 is about 548.4863627068.

The spelling of 165005151 in words is "one hundred sixty-five million, five thousand, one hundred fifty-one".