165526949 has 12 divisors (see below), whose sum is σ = 198764928. Its totient is φ = 137302200.

The previous prime is 165526913. The next prime is 165526957. The reversal of 165526949 is 949625561.

It is a de Polignac number, because none of the positive numbers 2^k-165526949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165526969) 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, 52967 + ... + 56004.

It is an arithmetic number, because the mean of its divisors is an integer number (16563744).

Almost surely, 2^165526949 is an apocalyptic number.

It is an amenable number.

165526949 is a deficient number, since it is larger than the sum of its proper divisors (33237979).

165526949 is a wasteful number, since it uses less digits than its factorization.

165526949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109016 (or 109009 counting only the distinct ones).

The product of its digits is 583200, while the sum is 47.

The square root of 165526949 is about 12865.7276902630. The cubic root of 165526949 is about 549.0639162569.

The spelling of 165526949 in words is "one hundred sixty-five million, five hundred twenty-six thousand, nine hundred forty-nine".