135780608 has 18 divisors (see below), whose sum is σ = 271031334. Its totient is φ = 67890176.

The previous prime is 135780599. The next prime is 135780611. The reversal of 135780608 is 806087531.

It can be written as a sum of positive squares in only one way, i.e., 122589184 + 13191424 = 11072^2 + 3632^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264941 + ... + 265452.

Almost surely, 2^135780608 is an apocalyptic number.

It is an amenable number.

135780608 is a deficient number, since it is larger than the sum of its proper divisors (135250726).

135780608 is an frugal number, since it uses more digits than its factorization.

135780608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530409 (or 530395 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 135780608 is about 11652.4936387024. The cubic root of 135780608 is about 513.9796405709.

The spelling of 135780608 in words is "one hundred thirty-five million, seven hundred eighty thousand, six hundred eight".