273740065 has 4 divisors (see below), whose sum is σ = 328488084. Its totient is φ = 218992048.

The previous prime is 273740063. The next prime is 273740083. The reversal of 273740065 is 560047372.

It is a happy number.

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 199487376 + 74252689 = 14124^2 + 8617^2 .

It is a cyclic number.

It is not a de Polignac number, because 273740065 - 2¹ = 273740063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 273740065.

It is not an unprimeable number, because it can be changed into a prime (273740063) 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, 27374002 + ... + 27374011.

It is an arithmetic number, because the mean of its divisors is an integer number (82122021).

Almost surely, 2^273740065 is an apocalyptic number.

It is an amenable number.

273740065 is a deficient number, since it is larger than the sum of its proper divisors (54748019).

273740065 is an equidigital number, since it uses as much as digits as its factorization.

273740065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54748018.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 273740065 is about 16545.0918704007. The cubic root of 273740065 is about 649.3010751672.

The spelling of 273740065 in words is "two hundred seventy-three million, seven hundred forty thousand, sixty-five".