272129 has 12 divisors (see below), whose sum is σ = 323988. Its totient is φ = 227040.
The previous prime is 272093. The next prime is 272131. The reversal of 272129 is 921272.
It can be written as a sum of positive squares in 2 ways, for example, as 148225 + 123904 = 385^2 + 352^2 .
It is not a de Polignac number, because 272129 - 216 = 206593 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 272129.
It is not an unprimeable number, because it can be changed into a prime (272179) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1487 + ... + 1659.
It is an arithmetic number, because the mean of its divisors is an integer number (26999).
2272129 is an apocalyptic number.
It is an amenable number.
272129 is a deficient number, since it is larger than the sum of its proper divisors (51859).
272129 is a wasteful number, since it uses less digits than its factorization.
272129 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 208 (or 197 counting only the distinct ones).
The product of its digits is 504, while the sum is 23.
The square root of 272129 is about 521.6598508607. The cubic root of 272129 is about 64.8024772969.
The spelling of 272129 in words is "two hundred seventy-two thousand, one hundred twenty-nine".
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