272213261 has 4 divisors (see below), whose sum is σ = 272260800. Its totient is φ = 272165724.

The previous prime is 272213239. The next prime is 272213269. The reversal of 272213261 is 162312272.

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 272213261 - 2¹⁸ = 271951117 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 272213261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272213269) 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, 13781 + ... + 27098.

It is an arithmetic number, because the mean of its divisors is an integer number (68065200).

Almost surely, 2^272213261 is an apocalyptic number.

It is an amenable number.

272213261 is a deficient number, since it is larger than the sum of its proper divisors (47539).

272213261 is an equidigital number, since it uses as much as digits as its factorization.

272213261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47538.

The product of its digits is 2016, while the sum is 26.

The square root of 272213261 is about 16498.8866594083. The cubic root of 272213261 is about 648.0916500519.

The spelling of 272213261 in words is "two hundred seventy-two million, two hundred thirteen thousand, two hundred sixty-one".