136505776 has 20 divisors (see below), whose sum is σ = 288523944. Its totient is φ = 62048000.

The previous prime is 136505773. The next prime is 136505777. The reversal of 136505776 is 677505631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (136505773) by changing a digit.

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, 387625 + ... + 387976.

Almost surely, 2^136505776 is an apocalyptic number.

136505776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136505776 is an abundant number, since it is smaller than the sum of its proper divisors (152018168).

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

136505776 is a wasteful number, since it uses less digits than its factorization.

136505776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775620 (or 775614 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 136505776 is about 11683.5686329135. The cubic root of 136505776 is about 514.8930258222.

The spelling of 136505776 in words is "one hundred thirty-six million, five hundred five thousand, seven hundred seventy-six".