136345569 has 8 divisors (see below), whose sum is σ = 181927200. Its totient is φ = 90830496.

The previous prime is 136345523. The next prime is 136345571. The reversal of 136345569 is 965543631.

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

It is not a de Polignac number, because 136345569 - 2¹¹ = 136343521 is a prime.

It is a super-2 number, since 2×136345569² = 37180228371867522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 136345569.

It is not an unprimeable number, because it can be changed into a prime (136345369) 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, 11644 + ... + 20205.

It is an arithmetic number, because the mean of its divisors is an integer number (22740900).

Almost surely, 2^136345569 is an apocalyptic number.

It is an amenable number.

136345569 is a deficient number, since it is larger than the sum of its proper divisors (45581631).

136345569 is a wasteful number, since it uses less digits than its factorization.

136345569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33279.

The product of its digits is 291600, while the sum is 42.

The square root of 136345569 is about 11676.7105385036. The cubic root of 136345569 is about 514.6915160128.

The spelling of 136345569 in words is "one hundred thirty-six million, three hundred forty-five thousand, five hundred sixty-nine".