136839775 has 18 divisors (see below), whose sum is σ = 172625856. Its totient is φ = 107604000.

The previous prime is 136839751. The next prime is 136839779. The reversal of 136839775 is 577938631.

It is not a de Polignac number, because 136839775 - 2¹⁷ = 136708703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136839779) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 92290 + ... + 93760.

Almost surely, 2^136839775 is an apocalyptic number.

136839775 is a deficient number, since it is larger than the sum of its proper divisors (35786081).

136839775 is an equidigital number, since it uses as much as digits as its factorization.

136839775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1537 counting only the distinct ones).

The product of its digits is 952560, while the sum is 49.

The square root of 136839775 is about 11697.8534355667. The cubic root of 136839775 is about 515.3126263468.

The spelling of 136839775 in words is "one hundred thirty-six million, eight hundred thirty-nine thousand, seven hundred seventy-five".