164265145 has 32 divisors (see below), whose sum is σ = 220631040. Its totient is φ = 116399040.

The previous prime is 164265133. The next prime is 164265161. The reversal of 164265145 is 541562461.

It is not a de Polignac number, because 164265145 - 2⁵ = 164265113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164265145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723522 + ... + 723748.

It is an arithmetic number, because the mean of its divisors is an integer number (6894720).

Almost surely, 2^164265145 is an apocalyptic number.

It is an amenable number.

164265145 is a deficient number, since it is larger than the sum of its proper divisors (56365895).

164265145 is a wasteful number, since it uses less digits than its factorization.

164265145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525.

The product of its digits is 28800, while the sum is 34.

The square root of 164265145 is about 12816.5964670813. The cubic root of 164265145 is about 547.6651934402.

The spelling of 164265145 in words is "one hundred sixty-four million, two hundred sixty-five thousand, one hundred forty-five".