272163005 has 4 divisors (see below), whose sum is σ = 326595612. Its totient is φ = 217730400.

The previous prime is 272162963. The next prime is 272163007. The reversal of 272163005 is 500361272.

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 212780569 + 59382436 = 14587^2 + 7706^2 .

It is not a de Polignac number, because 272163005 - 2¹⁸ = 271900861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272163007) 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, 27216296 + ... + 27216305.

It is an arithmetic number, because the mean of its divisors is an integer number (81648903).

Almost surely, 2^272163005 is an apocalyptic number.

It is an amenable number.

272163005 is a deficient number, since it is larger than the sum of its proper divisors (54432607).

272163005 is an equidigital number, since it uses as much as digits as its factorization.

272163005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54432606.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 272163005 is about 16497.3635772508. The cubic root of 272163005 is about 648.0517640468.

The spelling of 272163005 in words is "two hundred seventy-two million, one hundred sixty-three thousand, five".