136511669 has 8 divisors (see below), whose sum is σ = 156119040. Its totient is φ = 116930736.

The previous prime is 136511653. The next prime is 136511681. The reversal of 136511669 is 966115631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 136511669 - 2⁴ = 136511653 is a prime.

It is a super-2 number, since 2×136511669² = 37270871546331122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136511069) 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, 6092 + ... + 17610.

It is an arithmetic number, because the mean of its divisors is an integer number (19514880).

Almost surely, 2^136511669 is an apocalyptic number.

It is an amenable number.

136511669 is a deficient number, since it is larger than the sum of its proper divisors (19607371).

136511669 is a wasteful number, since it uses less digits than its factorization.

136511669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13219.

The product of its digits is 29160, while the sum is 38.

The square root of 136511669 is about 11683.8208219743. The cubic root of 136511669 is about 514.9004350836.

The spelling of 136511669 in words is "one hundred thirty-six million, five hundred eleven thousand, six hundred sixty-nine".