136820875 has 8 divisors (see below), whose sum is σ = 170752608. Its totient is φ = 109456600.

The previous prime is 136820863. The next prime is 136820891. The reversal of 136820875 is 578028631.

It is not a de Polignac number, because 136820875 - 2⁹ = 136820363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547159 + ... + 547408.

It is an arithmetic number, because the mean of its divisors is an integer number (21344076).

Almost surely, 2^136820875 is an apocalyptic number.

136820875 is a deficient number, since it is larger than the sum of its proper divisors (33931733).

136820875 is an equidigital number, since it uses as much as digits as its factorization.

136820875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094582 (or 1094572 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 136820875 is about 11697.0455671507. The cubic root of 136820875 is about 515.2889006499.

The spelling of 136820875 in words is "one hundred thirty-six million, eight hundred twenty thousand, eight hundred seventy-five".