135136620 has 48 divisors (see below), whose sum is σ = 420426720. Its totient is φ = 36036288.

The previous prime is 135136601. The next prime is 135136637. The reversal of 135136620 is 26631531.

135136620 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 36 + 620 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124587 + ... + 125666.

It is an arithmetic number, because the mean of its divisors is an integer number (8758890).

Almost surely, 2^135136620 is an apocalyptic number.

135136620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135136620 is an abundant number, since it is smaller than the sum of its proper divisors (285290100).

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

135136620 is a wasteful number, since it uses less digits than its factorization.

135136620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250271 (or 250263 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 135136620 is about 11624.8277406592. The cubic root of 135136620 is about 513.1657752262.

The spelling of 135136620 in words is "one hundred thirty-five million, one hundred thirty-six thousand, six hundred twenty".