272164445 has 8 divisors (see below), whose sum is σ = 373254144. Its totient is φ = 186627024.

The previous prime is 272164393. The next prime is 272164457. The reversal of 272164445 is 544461272.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 272164445 - 2²⁰ = 271115869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 7776127 = 272164445 / (2 + 7 + 2 + 1 + 6 + 4 + 4 + 4 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888029 + ... + 3888098.

It is an arithmetic number, because the mean of its divisors is an integer number (46656768).

Almost surely, 2^272164445 is an apocalyptic number.

It is an amenable number.

272164445 is a deficient number, since it is larger than the sum of its proper divisors (101089699).

272164445 is an equidigital number, since it uses as much as digits as its factorization.

272164445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7776139.

The product of its digits is 53760, while the sum is 35.

The square root of 272164445 is about 16497.4072205301. The cubic root of 272164445 is about 648.0529069806.

The spelling of 272164445 in words is "two hundred seventy-two million, one hundred sixty-four thousand, four hundred forty-five".