164282565 has 16 divisors (see below), whose sum is σ = 264218688. Its totient is φ = 87161856.

The previous prime is 164282561. The next prime is 164282567. The reversal of 164282565 is 565282461.

It is not a de Polignac number, because 164282565 - 2² = 164282561 is a prime.

It is a super-2 number, since 2×164282565² = 53977522325958450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164282561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25479 + ... + 31268.

It is an arithmetic number, because the mean of its divisors is an integer number (16513668).

Almost surely, 2^164282565 is an apocalyptic number.

164282565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164282565 is a deficient number, since it is larger than the sum of its proper divisors (99936123).

164282565 is a wasteful number, since it uses less digits than its factorization.

164282565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56948.

The product of its digits is 115200, while the sum is 39.

The square root of 164282565 is about 12817.2760366624. The cubic root of 164282565 is about 547.6845523664.

The spelling of 164282565 in words is "one hundred sixty-four million, two hundred eighty-two thousand, five hundred sixty-five".