136939775 has 24 divisors (see below), whose sum is σ = 199317600. Its totient is φ = 91359360.

The previous prime is 136939729. The next prime is 136939787. The reversal of 136939775 is 577939631.

136939775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136939775 - 2¹⁸ = 136677631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4100 + ... + 17049.

It is an arithmetic number, because the mean of its divisors is an integer number (8304900).

Almost surely, 2^136939775 is an apocalyptic number.

136939775 is a deficient number, since it is larger than the sum of its proper divisors (62377825).

136939775 is a wasteful number, since it uses less digits than its factorization.

136939775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21203 (or 21198 counting only the distinct ones).

The product of its digits is 1071630, while the sum is 50.

The square root of 136939775 is about 11702.1269434236. The cubic root of 136939775 is about 515.4381227897.

The spelling of 136939775 in words is "one hundred thirty-six million, nine hundred thirty-nine thousand, seven hundred seventy-five".