165430845 has 24 divisors (see below), whose sum is σ = 287258400. Its totient is φ = 88072416.

The previous prime is 165430843. The next prime is 165430873. The reversal of 165430845 is 548034561.

It is a happy number.

It is not a de Polignac number, because 165430845 - 2¹ = 165430843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165430843) 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, 24886 + ... + 30824.

It is an arithmetic number, because the mean of its divisors is an integer number (11969100).

Almost surely, 2^165430845 is an apocalyptic number.

165430845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165430845 is a deficient number, since it is larger than the sum of its proper divisors (121827555).

165430845 is a wasteful number, since it uses less digits than its factorization.

165430845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569 (or 6566 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 165430845 is about 12861.9922640313. The cubic root of 165430845 is about 548.9576345621.

The spelling of 165430845 in words is "one hundred sixty-five million, four hundred thirty thousand, eight hundred forty-five".