102315427 has 2 divisors, whose sum is σ = 102315428. Its totient is φ = 102315426.

The previous prime is 102315419. The next prime is 102315439. The reversal of 102315427 is 724513201.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (724513201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102315427 - 2³ = 102315419 is a prime.

It is not a weakly prime, because it can be changed into another prime (102315457) 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 as a sum of consecutive naturals, namely, 51157713 + 51157714.

It is an arithmetic number, because the mean of its divisors is an integer number (51157714).

Almost surely, 2^102315427 is an apocalyptic number.

102315427 is a deficient number, since it is larger than the sum of its proper divisors (1).

102315427 is an equidigital number, since it uses as much as digits as its factorization.

102315427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 102315427 is about 10115.1088476595. The cubic root of 102315427 is about 467.7140042266.

Adding to 102315427 its reverse (724513201), we get a palindrome (826828628).

The spelling of 102315427 in words is "one hundred two million, three hundred fifteen thousand, four hundred twenty-seven".