136788040 has 16 divisors (see below), whose sum is σ = 307773180. Its totient is φ = 54715200.

The previous prime is 136788007. The next prime is 136788053. The reversal of 136788040 is 40887631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 124411716 + 12376324 = 11154^2 + 3518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1709811 + ... + 1709890.

Almost surely, 2^136788040 is an apocalyptic number.

136788040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136788040 is an abundant number, since it is smaller than the sum of its proper divisors (170985140).

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

136788040 is a wasteful number, since it uses less digits than its factorization.

136788040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419712 (or 3419708 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 136788040 is about 11695.6419233833. The cubic root of 136788040 is about 515.2476767633.

The spelling of 136788040 in words is "one hundred thirty-six million, seven hundred eighty-eight thousand, forty".