102378 has 16 divisors (see below), whose sum is σ = 207936. Its totient is φ = 33600.

The previous prime is 102367. The next prime is 102397. The reversal of 102378 is 873201.

102378 is a nontrivial binomial coefficient, being equal to C(453, 2).

It is an unprimeable number.

102378 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (12996).

2¹⁰²³⁷⁸ is an apocalyptic number.

102378 is the 452-nd triangular number.

102378 is an abundant number, since it is smaller than the sum of its proper divisors (105558).

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

102378 is a wasteful number, since it uses less digits than its factorization.

102378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 102378 is about 319.9656231535. The cubic root of 102378 is about 46.7809331344.

Adding to 102378 its reverse (873201), we get a palindrome (975579).

The spelling of 102378 in words is "one hundred two thousand, three hundred seventy-eight".