189259565 has 16 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 137392320.

The previous prime is 189259561. The next prime is 189259601. The reversal of 189259565 is 565952981.

It is not a de Polignac number, because 189259565 - 2² = 189259561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189259561) 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, 30551 + ... + 36219.

It is an arithmetic number, because the mean of its divisors is an integer number (15513120).

Almost surely, 2^189259565 is an apocalyptic number.

It is an amenable number.

189259565 is a deficient number, since it is larger than the sum of its proper divisors (58950355).

189259565 is a wasteful number, since it uses less digits than its factorization.

189259565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6292.

The product of its digits is 972000, while the sum is 50.

The square root of 189259565 is about 13757.1641336432. The cubic root of 189259565 is about 574.1419489328.

The spelling of 189259565 in words is "one hundred eighty-nine million, two hundred fifty-nine thousand, five hundred sixty-five".