281925 has 36 divisors (see below), whose sum is σ = 580320. Its totient is φ = 128160.

The previous prime is 281923. The next prime is 281927. The reversal of 281925 is 529182.

It is an interprime number because it is at equal distance from previous prime (281923) and next prime (281927).

It is not a de Polignac number, because 281925 - 2¹ = 281923 is a prime.

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 281925.

It is not an unprimeable number, because it can be changed into a prime (281921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1486 + ... + 1664.

It is an arithmetic number, because the mean of its divisors is an integer number (16120).

2²⁸¹⁹²⁵ is an apocalyptic number.

281925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

281925 is an abundant number, since it is smaller than the sum of its proper divisors (298395).

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

281925 is a wasteful number, since it uses less digits than its factorization.

281925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 194 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 281925 is about 530.9661006128. The cubic root of 281925 is about 65.5709078071.

It can be divided in two parts, 28 and 1925, that added together give a triangular number (1953 = T₆₂).

The spelling of 281925 in words is "two hundred eighty-one thousand, nine hundred twenty-five".