228671565 has 8 divisors (see below), whose sum is σ = 365874528. Its totient is φ = 121958160.

The previous prime is 228671563. The next prime is 228671567. The reversal of 228671565 is 565176822.

It is an interprime number because it is at equal distance from previous prime (228671563) and next prime (228671567).

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

It is not a de Polignac number, because 228671565 - 2¹ = 228671563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228671561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7622371 + ... + 7622400.

It is an arithmetic number, because the mean of its divisors is an integer number (45734316).

Almost surely, 2^228671565 is an apocalyptic number.

It is an amenable number.

228671565 is a deficient number, since it is larger than the sum of its proper divisors (137202963).

228671565 is a wasteful number, since it uses less digits than its factorization.

228671565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15244779.

The product of its digits is 201600, while the sum is 42.

The square root of 228671565 is about 15121.8902588268. The cubic root of 228671565 is about 611.5106917009.

The spelling of 228671565 in words is "two hundred twenty-eight million, six hundred seventy-one thousand, five hundred sixty-five".