281741 has 4 divisors (see below), whose sum is σ = 298332. Its totient is φ = 265152.

The previous prime is 281737. The next prime is 281747. The reversal of 281741 is 147182.

281741 = 74² + 75² + ... + 107².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206116 + 75625 = 454^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 281741 - 2² = 281737 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 (281747) 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, 8270 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (74583).

2²⁸¹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

281741 is a deficient number, since it is larger than the sum of its proper divisors (16591).

281741 is a wasteful number, since it uses less digits than its factorization.

281741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16590.

The product of its digits is 448, while the sum is 23.

The square root of 281741 is about 530.7928032670. The cubic root of 281741 is about 65.5566396237.

The spelling of 281741 in words is "two hundred eighty-one thousand, seven hundred forty-one".