272157489 has 20 divisors (see below), whose sum is σ = 420579060. Its totient is φ = 175180320.

The previous prime is 272157481. The next prime is 272157511. The reversal of 272157489 is 984751272.

It is a happy number.

272157489 is a `hidden beast` number, since 2 + 72 + 1 + 574 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50296464 + 221861025 = 7092^2 + 14895^2 .

It is not a de Polignac number, because 272157489 - 2³ = 272157481 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (272157481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55582 + ... + 60279.

It is an arithmetic number, because the mean of its divisors is an integer number (21028953).

Almost surely, 2^272157489 is an apocalyptic number.

272157489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

272157489 is a deficient number, since it is larger than the sum of its proper divisors (148421571).

272157489 is a wasteful number, since it uses less digits than its factorization.

272157489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115902 (or 115893 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 272157489 is about 16497.1963981763. The cubic root of 272157489 is about 648.0473859380.

The spelling of 272157489 in words is "two hundred seventy-two million, one hundred fifty-seven thousand, four hundred eighty-nine".