272145 has 8 divisors (see below), whose sum is σ = 435456. Its totient is φ = 145136.

The previous prime is 272141. The next prime is 272171. The reversal of 272145 is 541272.

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 272145 - 2² = 272141 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (272141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9057 + ... + 9086.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2²⁷²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

272145 is a deficient number, since it is larger than the sum of its proper divisors (163311).

272145 is a wasteful number, since it uses less digits than its factorization.

272145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151.

The product of its digits is 560, while the sum is 21.

The square root of 272145 is about 521.6751862989. The cubic root of 272145 is about 64.8037473065.

The spelling of 272145 in words is "two hundred seventy-two thousand, one hundred forty-five".