281130 has 16 divisors (see below), whose sum is σ = 674784. Its totient is φ = 74960.

The previous prime is 281117. The next prime is 281131. The reversal of 281130 is 31182.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4656 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (42174).

2²⁸¹¹³⁰ is an apocalyptic number.

281130 is an abundant number, since it is smaller than the sum of its proper divisors (393654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281130 is a wasteful number, since it uses less digits than its factorization.

281130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 281130 is about 530.2169367344. The cubic root of 281130 is about 65.5092153380.

The spelling of 281130 in words is "two hundred eighty-one thousand, one hundred thirty".