136717739 has 4 divisors (see below), whose sum is σ = 140052360. Its totient is φ = 133383120.

The previous prime is 136717729. The next prime is 136717751. The reversal of 136717739 is 937717631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136717739 - 2¹⁶ = 136652203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136717739.

It is not an unprimeable number, because it can be changed into a prime (136717709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667249 + ... + 1667330.

It is an arithmetic number, because the mean of its divisors is an integer number (35013090).

Almost surely, 2^136717739 is an apocalyptic number.

136717739 is a deficient number, since it is larger than the sum of its proper divisors (3334621).

136717739 is an equidigital number, since it uses as much as digits as its factorization.

136717739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334620.

The product of its digits is 166698, while the sum is 44.

The square root of 136717739 is about 11692.6361014102. The cubic root of 136717739 is about 515.1593926461.

The spelling of 136717739 in words is "one hundred thirty-six million, seven hundred seventeen thousand, seven hundred thirty-nine".