280102 has 8 divisors (see below), whose sum is σ = 430056. Its totient is φ = 136752.

The previous prime is 280099. The next prime is 280103. The reversal of 280102 is 201082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280103) 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 3 ways as a sum of consecutive naturals, for example, 1543 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (53757).

2²⁸⁰¹⁰² is an apocalyptic number.

280102 is a deficient number, since it is larger than the sum of its proper divisors (149954).

280102 is a wasteful number, since it uses less digits than its factorization.

280102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 280102 is about 529.2466343776. The cubic root of 280102 is about 65.4292692575.

Adding to 280102 its reverse (201082), we get a palindrome (481184).

The spelling of 280102 in words is "two hundred eighty thousand, one hundred two".