273361261 has 4 divisors (see below), whose sum is σ = 274657024. Its totient is φ = 272065500.

The previous prime is 273361171. The next prime is 273361267. The reversal of 273361261 is 162163372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 273361261 - 2⁷ = 273361133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273361267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647565 + ... + 647986.

It is an arithmetic number, because the mean of its divisors is an integer number (68664256).

Almost surely, 2^273361261 is an apocalyptic number.

It is an amenable number.

273361261 is a deficient number, since it is larger than the sum of its proper divisors (1295763).

273361261 is a wasteful number, since it uses less digits than its factorization.

273361261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295762.

The product of its digits is 9072, while the sum is 31.

The square root of 273361261 is about 16533.6402827689. The cubic root of 273361261 is about 649.0014339915.

The spelling of 273361261 in words is "two hundred seventy-three million, three hundred sixty-one thousand, two hundred sixty-one".