135655720 has 16 divisors (see below), whose sum is σ = 305225460. Its totient is φ = 54262272.

The previous prime is 135655703. The next prime is 135655739. The reversal of 135655720 is 27556531.

It can be written as a sum of positive squares in 2 ways, for example, as 134699236 + 956484 = 11606^2 + 978^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695657 + ... + 1695736.

Almost surely, 2^135655720 is an apocalyptic number.

135655720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135655720 is an abundant number, since it is smaller than the sum of its proper divisors (169569740).

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

135655720 is a wasteful number, since it uses less digits than its factorization.

135655720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391404 (or 3391400 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 135655720 is about 11647.1335529391. The cubic root of 135655720 is about 513.8220098643.

The spelling of 135655720 in words is "one hundred thirty-five million, six hundred fifty-five thousand, seven hundred twenty".