165241071 has 12 divisors (see below), whose sum is σ = 252721872. Its totient is φ = 103680576.

The previous prime is 165241031. The next prime is 165241079. The reversal of 165241071 is 170142561.

It is a happy number.

165241071 is a `hidden beast` number, since 1 + 652 + 4 + 1 + 0 + 7 + 1 = 666.

It is not a de Polignac number, because 165241071 - 2⁶ = 165241007 is a prime.

It is a super-2 number, since 2×165241071² = 54609223090454082, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165241079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539851 + ... + 540156.

It is an arithmetic number, because the mean of its divisors is an integer number (21060156).

Almost surely, 2^165241071 is an apocalyptic number.

165241071 is a deficient number, since it is larger than the sum of its proper divisors (87480801).

165241071 is a wasteful number, since it uses less digits than its factorization.

165241071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080030 (or 1080027 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 165241071 is about 12854.6128296421. The cubic root of 165241071 is about 548.7476419870.

The spelling of 165241071 in words is "one hundred sixty-five million, two hundred forty-one thousand, seventy-one".