102278 has 8 divisors (see below), whose sum is σ = 167400. Its totient is φ = 46480.

The previous prime is 102259. The next prime is 102293. The reversal of 102278 is 872201.

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

It is a Curzon number.

It is a congruent number.

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, 2303 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (20925).

2¹⁰²²⁷⁸ is an apocalyptic number.

102278 is a deficient number, since it is larger than the sum of its proper divisors (65122).

102278 is a wasteful number, since it uses less digits than its factorization.

102278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662.

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

The square root of 102278 is about 319.8093181882. The cubic root of 102278 is about 46.7656967318.

Adding to 102278 its reverse (872201), we get a palindrome (974479).

The spelling of 102278 in words is "one hundred two thousand, two hundred seventy-eight".