102303605 has 4 divisors (see below), whose sum is σ = 122764332. Its totient is φ = 81842880.

The previous prime is 102303599. The next prime is 102303623. The reversal of 102303605 is 506303201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35832196 + 66471409 = 5986^2 + 8153^2 .

It is not a de Polignac number, because 102303605 - 2⁶ = 102303541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10230356 + ... + 10230365.

It is an arithmetic number, because the mean of its divisors is an integer number (30691083).

Almost surely, 2^102303605 is an apocalyptic number.

It is an amenable number.

102303605 is a deficient number, since it is larger than the sum of its proper divisors (20460727).

102303605 is an equidigital number, since it uses as much as digits as its factorization.

102303605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20460726.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 102303605 is about 10114.5244574325. The cubic root of 102303605 is about 467.6959895828.

Adding to 102303605 its reverse (506303201), we get a palindrome (608606806).

The spelling of 102303605 in words is "one hundred two million, three hundred three thousand, six hundred five".