280141 has 4 divisors (see below), whose sum is σ = 281212. Its totient is φ = 279072.

The previous prime is 280139. The next prime is 280183. The reversal of 280141 is 141082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 96100 + 184041 = 310^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 280141 - 2¹ = 280139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151 + ... + 763.

It is an arithmetic number, because the mean of its divisors is an integer number (70303).

2²⁸⁰¹⁴¹ is an apocalyptic number.

It is an amenable number.

280141 is a deficient number, since it is larger than the sum of its proper divisors (1071).

280141 is an equidigital number, since it uses as much as digits as its factorization.

280141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 280141 is about 529.2834779209. The cubic root of 280141 is about 65.4323057979.

The spelling of 280141 in words is "two hundred eighty thousand, one hundred forty-one".