136828769 has 8 divisors (see below), whose sum is σ = 170591808. Its totient is φ = 106619760.

The previous prime is 136828763. The next prime is 136828831. The reversal of 136828769 is 967828631.

136828769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 136828769 - 2¹² = 136824673 is a prime.

It is a super-2 number, since 2×136828769² = 37444224052110722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136828763) 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, 888422 + ... + 888575.

It is an arithmetic number, because the mean of its divisors is an integer number (21323976).

Almost surely, 2^136828769 is an apocalyptic number.

It is an amenable number.

136828769 is a deficient number, since it is larger than the sum of its proper divisors (33763039).

136828769 is a wasteful number, since it uses less digits than its factorization.

136828769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777015.

The product of its digits is 870912, while the sum is 50.

The square root of 136828769 is about 11697.3829979188. The cubic root of 136828769 is about 515.2988104739.

The spelling of 136828769 in words is "one hundred thirty-six million, eight hundred twenty-eight thousand, seven hundred sixty-nine".