136944783 has 32 divisors (see below), whose sum is σ = 213857280. Its totient is φ = 86438880.

The previous prime is 136944779. The next prime is 136944791. The reversal of 136944783 is 387449631.

It is not a de Polignac number, because 136944783 - 2² = 136944779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136944713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62893 + ... + 65033.

It is an arithmetic number, because the mean of its divisors is an integer number (6683040).

Almost surely, 2^136944783 is an apocalyptic number.

136944783 is a deficient number, since it is larger than the sum of its proper divisors (76912497).

136944783 is a wasteful number, since it uses less digits than its factorization.

136944783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276 (or 2270 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 136944783 is about 11702.3409196622. The cubic root of 136944783 is about 515.4444060449. Note that the first 4 decimals are identical.

The spelling of 136944783 in words is "one hundred thirty-six million, nine hundred forty-four thousand, seven hundred eighty-three".