136626549 has 16 divisors (see below), whose sum is σ = 194073600. Its totient is φ = 85247856.

The previous prime is 136626521. The next prime is 136626551. The reversal of 136626549 is 945626631.

It is not a de Polignac number, because 136626549 - 2⁸ = 136626293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136626549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136626559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9709 + ... + 19170.

It is an arithmetic number, because the mean of its divisors is an integer number (12129600).

Almost surely, 2^136626549 is an apocalyptic number.

136626549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

136626549 is a deficient number, since it is larger than the sum of its proper divisors (57447051).

136626549 is a wasteful number, since it uses less digits than its factorization.

136626549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28984.

The product of its digits is 233280, while the sum is 42.

The square root of 136626549 is about 11688.7359881212. The cubic root of 136626549 is about 515.0448309859.

The spelling of 136626549 in words is "one hundred thirty-six million, six hundred twenty-six thousand, five hundred forty-nine".