135690680 has 32 divisors (see below), whose sum is σ = 305778240. Its totient is φ = 54192000.

The previous prime is 135690679. The next prime is 135690697. The reversal of 135690680 is 86096531.

135690680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 27782 + ... + 32298.

It is an arithmetic number, because the mean of its divisors is an integer number (9555570).

Almost surely, 2^135690680 is an apocalyptic number.

135690680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135690680 is an abundant number, since it is smaller than the sum of its proper divisors (170087560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135690680 is a wasteful number, since it uses less digits than its factorization.

135690680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279 (or 5275 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 135690680 is about 11648.6342547099. The cubic root of 135690680 is about 513.8661453041.

The spelling of 135690680 in words is "one hundred thirty-five million, six hundred ninety thousand, six hundred eighty".