102305734 has 4 divisors (see below), whose sum is σ = 153458604. Its totient is φ = 51152866.

The previous prime is 102305713. The next prime is 102305743. The reversal of 102305734 is 437503201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102305699 and 102305708.

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 as a sum of consecutive naturals, namely, 25576432 + ... + 25576435.

It is an arithmetic number, because the mean of its divisors is an integer number (38364651).

Almost surely, 2^102305734 is an apocalyptic number.

102305734 is a deficient number, since it is larger than the sum of its proper divisors (51152870).

102305734 is an equidigital number, since it uses as much as digits as its factorization.

102305734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51152869.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 102305734 is about 10114.6297015758. The cubic root of 102305734 is about 467.6992339059.

Adding to 102305734 its reverse (437503201), we get a palindrome (539808935).

The spelling of 102305734 in words is "one hundred two million, three hundred five thousand, seven hundred thirty-four".