135680756 has 12 divisors (see below), whose sum is σ = 238036260. Its totient is φ = 67670400.

The previous prime is 135680669. The next prime is 135680759. The reversal of 135680756 is 657086531.

It can be written as a sum of positive squares in 2 ways, for example, as 127328656 + 8352100 = 11284^2 + 2890^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135680759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40691 + ... + 43898.

It is an arithmetic number, because the mean of its divisors is an integer number (19836355).

Almost surely, 2^135680756 is an apocalyptic number.

It is an amenable number.

135680756 is a deficient number, since it is larger than the sum of its proper divisors (102355504).

135680756 is a wasteful number, since it uses less digits than its factorization.

135680756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84994 (or 84992 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 135680756 is about 11648.2082742369. The cubic root of 135680756 is about 513.8536174676.

The spelling of 135680756 in words is "one hundred thirty-five million, six hundred eighty thousand, seven hundred fifty-six".