136319273 has 4 divisors (see below), whose sum is σ = 136343748. Its totient is φ = 136294800.

The previous prime is 136319269. The next prime is 136319279. The reversal of 136319273 is 372913631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102353689 + 33965584 = 10117^2 + 5828^2 .

It is a cyclic number.

It is not a de Polignac number, because 136319273 - 2² = 136319269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136319279) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 623 + ... + 16523.

It is an arithmetic number, because the mean of its divisors is an integer number (34085937).

Almost surely, 2^136319273 is an apocalyptic number.

It is an amenable number.

136319273 is a deficient number, since it is larger than the sum of its proper divisors (24475).

136319273 is an equidigital number, since it uses as much as digits as its factorization.

136319273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24474.

The product of its digits is 20412, while the sum is 35.

The square root of 136319273 is about 11675.5844821576. The cubic root of 136319273 is about 514.6584255883.

The spelling of 136319273 in words is "one hundred thirty-six million, three hundred nineteen thousand, two hundred seventy-three".