136275887 has 6 divisors (see below), whose sum is σ = 149790984. Its totient is φ = 123887060.

The previous prime is 136275883. The next prime is 136275911. The reversal of 136275887 is 788572631.

It is a happy number.

It is not a de Polignac number, because 136275887 - 2² = 136275883 is a prime.

It is a super-2 number, since 2×136275887² = 37142234755273538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136275883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563003 + ... + 563244.

It is an arithmetic number, because the mean of its divisors is an integer number (24965164).

Almost surely, 2^136275887 is an apocalyptic number.

136275887 is a deficient number, since it is larger than the sum of its proper divisors (13515097).

136275887 is a wasteful number, since it uses less digits than its factorization.

136275887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126269 (or 1126258 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 136275887 is about 11673.7263545108. The cubic root of 136275887 is about 514.6038201040.

The spelling of 136275887 in words is "one hundred thirty-six million, two hundred seventy-five thousand, eight hundred eighty-seven".