165429265 has 8 divisors (see below), whose sum is σ = 199194408. Its totient is φ = 131890560.

The previous prime is 165429263. The next prime is 165429283. The reversal of 165429265 is 562924561.

It can be written as a sum of positive squares in 4 ways, for example, as 113358609 + 52070656 = 10647^2 + 7216^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165429265 - 2¹ = 165429263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165429263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54996 + ... + 57925.

It is an arithmetic number, because the mean of its divisors is an integer number (24899301).

Almost surely, 2^165429265 is an apocalyptic number.

It is an amenable number.

165429265 is a deficient number, since it is larger than the sum of its proper divisors (33765143).

165429265 is a wasteful number, since it uses less digits than its factorization.

165429265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113219.

The product of its digits is 129600, while the sum is 40.

The square root of 165429265 is about 12861.9308426068. The cubic root of 165429265 is about 548.9558868916.

The spelling of 165429265 in words is "one hundred sixty-five million, four hundred twenty-nine thousand, two hundred sixty-five".