272742145 has 16 divisors (see below), whose sum is σ = 352820160. Its totient is φ = 201207744.

The previous prime is 272742137. The next prime is 272742161. The reversal of 272742145 is 541247272.

It is a cyclic number.

It is not a de Polignac number, because 272742145 - 2³ = 272742137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272742145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104466 + ... + 107044.

It is an arithmetic number, because the mean of its divisors is an integer number (22051260).

Almost surely, 2^272742145 is an apocalyptic number.

It is an amenable number.

272742145 is a deficient number, since it is larger than the sum of its proper divisors (80078015).

272742145 is a wasteful number, since it uses less digits than its factorization.

272742145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224.

The product of its digits is 31360, while the sum is 34.

The square root of 272742145 is about 16514.9067511748. The cubic root of 272742145 is about 648.5111049500.

The spelling of 272742145 in words is "two hundred seventy-two million, seven hundred forty-two thousand, one hundred forty-five".