272045643 has 4 divisors (see below), whose sum is σ = 362727528. Its totient is φ = 181363760.

The previous prime is 272045639. The next prime is 272045647. The reversal of 272045643 is 346540272.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (272045639) and next prime (272045647).

It is a cyclic number.

It is not a de Polignac number, because 272045643 - 2² = 272045639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (272045647) 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, 45340938 + ... + 45340943.

It is an arithmetic number, because the mean of its divisors is an integer number (90681882).

Almost surely, 2^272045643 is an apocalyptic number.

272045643 is a deficient number, since it is larger than the sum of its proper divisors (90681885).

272045643 is an equidigital number, since it uses as much as digits as its factorization.

272045643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90681884.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 272045643 is about 16493.8062011168. The cubic root of 272045643 is about 647.9585997975.

The spelling of 272045643 in words is "two hundred seventy-two million, forty-five thousand, six hundred forty-three".