136277691 has 16 divisors (see below), whose sum is σ = 206841600. Its totient is φ = 79001120.

The previous prime is 136277683. The next prime is 136277693. The reversal of 136277691 is 196772631.

It is not a de Polignac number, because 136277691 - 2³ = 136277683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136277693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89016 + ... + 90533.

It is an arithmetic number, because the mean of its divisors is an integer number (12927600).

Almost surely, 2^136277691 is an apocalyptic number.

136277691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136277691 is a deficient number, since it is larger than the sum of its proper divisors (70563909).

136277691 is a wasteful number, since it uses less digits than its factorization.

136277691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179586.

The product of its digits is 95256, while the sum is 42.

The square root of 136277691 is about 11673.8036217850. The cubic root of 136277691 is about 514.6060908437.

The spelling of 136277691 in words is "one hundred thirty-six million, two hundred seventy-seven thousand, six hundred ninety-one".