272545 has 16 divisors (see below), whose sum is σ = 403200. Its totient is φ = 172224.

The previous prime is 272539. The next prime is 272549. The reversal of 272545 is 545272.

272545 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 272545 - 2³ = 272537 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 (272549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156 + ... + 754.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2²⁷²⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

272545 is a deficient number, since it is larger than the sum of its proper divisors (130655).

272545 is a wasteful number, since it uses less digits than its factorization.

272545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its digits is 2800, while the sum is 25.

The square root of 272545 is about 522.0584258491. The cubic root of 272545 is about 64.8354813814.

Subtracting from 272545 its product of digits (2800), we obtain a triangular number (269745 = T₇₃₄).

It can be divided in two parts, 272 and 545, that multiplied together give a triangular number (148240 = T₅₄₄).

The spelling of 272545 in words is "two hundred seventy-two thousand, five hundred forty-five".