136747273 has 4 divisors (see below), whose sum is σ = 147266308. Its totient is φ = 126228240.

The previous prime is 136747271. The next prime is 136747277. The reversal of 136747273 is 372747631.

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 76947984 + 59799289 = 8772^2 + 7733^2 .

It is a cyclic number.

It is not a de Polignac number, because 136747273 - 2¹ = 136747271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136747271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5259498 + ... + 5259523.

It is an arithmetic number, because the mean of its divisors is an integer number (36816577).

Almost surely, 2^136747273 is an apocalyptic number.

136747273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

136747273 is a deficient number, since it is larger than the sum of its proper divisors (10519035).

136747273 is a wasteful number, since it uses less digits than its factorization.

136747273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10519034.

The product of its digits is 148176, while the sum is 40.

The square root of 136747273 is about 11693.8989648449. The cubic root of 136747273 is about 515.1964851799.

The spelling of 136747273 in words is "one hundred thirty-six million, seven hundred forty-seven thousand, two hundred seventy-three".