278102 has 8 divisors (see below), whose sum is σ = 455112. Its totient is φ = 126400.

The previous prime is 278087. The next prime is 278111. The reversal of 278102 is 201872.

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

It is a nialpdrome in base 13.

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 278102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6299 + ... + 6342.

It is an arithmetic number, because the mean of its divisors is an integer number (56889).

2²⁷⁸¹⁰² is an apocalyptic number.

278102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

278102 is a deficient number, since it is larger than the sum of its proper divisors (177010).

278102 is a wasteful number, since it uses less digits than its factorization.

278102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 278102 is about 527.3537712011. The cubic root of 278102 is about 65.2731698909.

Adding to 278102 its reverse (201872), we get a palindrome (479974).

The spelling of 278102 in words is "two hundred seventy-eight thousand, one hundred two".