136345665 has 8 divisors (see below), whose sum is σ = 218153088. Its totient is φ = 72717680.

The previous prime is 136345639. The next prime is 136345673. The reversal of 136345665 is 566543631.

It is a happy number.

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

It is not a de Polignac number, because 136345665 - 2¹¹ = 136343617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544841 + ... + 4544870.

It is an arithmetic number, because the mean of its divisors is an integer number (27269136).

Almost surely, 2^136345665 is an apocalyptic number.

136345665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136345665 is a deficient number, since it is larger than the sum of its proper divisors (81807423).

136345665 is an equidigital number, since it uses as much as digits as its factorization.

136345665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9089719.

The product of its digits is 194400, while the sum is 39.

The square root of 136345665 is about 11676.7146492496. The cubic root of 136345665 is about 514.6916368097.

The spelling of 136345665 in words is "one hundred thirty-six million, three hundred forty-five thousand, six hundred sixty-five".