102315378 has 16 divisors (see below), whose sum is σ = 223233696. Its totient is φ = 31004640.

The previous prime is 102315373. The next prime is 102315403. The reversal of 102315378 is 873513201.

It is not an unprimeable number, because it can be changed into a prime (102315373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775051 + ... + 775182.

It is an arithmetic number, because the mean of its divisors is an integer number (13952106).

Almost surely, 2^102315378 is an apocalyptic number.

102315378 is an abundant number, since it is smaller than the sum of its proper divisors (120918318).

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

102315378 is a wasteful number, since it uses less digits than its factorization.

102315378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550249.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 102315378 is about 10115.1064255400. The cubic root of 102315378 is about 467.7139295621.

Adding to 102315378 its reverse (873513201), we get a palindrome (975828579).

The spelling of 102315378 in words is "one hundred two million, three hundred fifteen thousand, three hundred seventy-eight".