136740874 has 4 divisors (see below), whose sum is σ = 205111314. Its totient is φ = 68370436.

The previous prime is 136740859. The next prime is 136740893. The reversal of 136740874 is 478047631.

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., 71825625 + 64915249 = 8475^2 + 8057^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34185217 + ... + 34185220.

Almost surely, 2^136740874 is an apocalyptic number.

136740874 is a deficient number, since it is larger than the sum of its proper divisors (68370440).

136740874 is an equidigital number, since it uses as much as digits as its factorization.

136740874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68370439.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 136740874 is about 11693.6253574330. The cubic root of 136740874 is about 515.1884489593.

The spelling of 136740874 in words is "one hundred thirty-six million, seven hundred forty thousand, eight hundred seventy-four".