136757818 has 4 divisors (see below), whose sum is σ = 205136730. Its totient is φ = 68378908.

The previous prime is 136757807. The next prime is 136757821. The reversal of 136757818 is 818757631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86248369 + 50509449 = 9287^2 + 7107^2 .

It is a super-2 number, since 2×136757818² = 37405401568242248, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34189453 + ... + 34189456.

Almost surely, 2^136757818 is an apocalyptic number.

136757818 is a deficient number, since it is larger than the sum of its proper divisors (68378912).

136757818 is an equidigital number, since it uses as much as digits as its factorization.

136757818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68378911.

The product of its digits is 282240, while the sum is 46.

The square root of 136757818 is about 11694.3498322908. The cubic root of 136757818 is about 515.2097276311.

The spelling of 136757818 in words is "one hundred thirty-six million, seven hundred fifty-seven thousand, eight hundred eighteen".