136949656 has 8 divisors (see below), whose sum is σ = 256780620. Its totient is φ = 68474824.

The previous prime is 136949641. The next prime is 136949677. The reversal of 136949656 is 656949631.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8559346 + ... + 8559361.

Almost surely, 2^136949656 is an apocalyptic number.

It is an amenable number.

136949656 is a deficient number, since it is larger than the sum of its proper divisors (119830964).

136949656 is a wasteful number, since it uses less digits than its factorization.

136949656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17118713 (or 17118709 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 49.

The square root of 136949656 is about 11702.5491240157. The cubic root of 136949656 is about 515.4505197762.

It can be divided in two parts, 13694965 and 6, that multiplied together give a triangular number (82169790 = T₁₂₈₁₉).

The spelling of 136949656 in words is "one hundred thirty-six million, nine hundred forty-nine thousand, six hundred fifty-six".