136287656 has 16 divisors (see below), whose sum is σ = 263783040. Its totient is φ = 65945520.

The previous prime is 136287653. The next prime is 136287659. The reversal of 136287656 is 656782631.

It is an interprime number because it is at equal distance from previous prime (136287653) and next prime (136287659).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (136287653) 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 3 ways as a sum of consecutive naturals, for example, 274526 + ... + 275021.

It is an arithmetic number, because the mean of its divisors is an integer number (16486440).

Almost surely, 2^136287656 is an apocalyptic number.

It is an amenable number.

136287656 is a deficient number, since it is larger than the sum of its proper divisors (127495384).

136287656 is a wasteful number, since it uses less digits than its factorization.

136287656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549584 (or 549580 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 136287656 is about 11674.2304243149. The cubic root of 136287656 is about 514.6186336761.

The spelling of 136287656 in words is "one hundred thirty-six million, two hundred eighty-seven thousand, six hundred fifty-six".