102434305 has 4 divisors (see below), whose sum is σ = 122921172. Its totient is φ = 81947440.

The previous prime is 102434281. The next prime is 102434309. The reversal of 102434305 is 503434201.

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 79995136 + 22439169 = 8944^2 + 4737^2 .

It is not a de Polignac number, because 102434305 - 2⁵ = 102434273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102434309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10243426 + ... + 10243435.

It is an arithmetic number, because the mean of its divisors is an integer number (30730293).

Almost surely, 2^102434305 is an apocalyptic number.

It is an amenable number.

102434305 is a deficient number, since it is larger than the sum of its proper divisors (20486867).

102434305 is an equidigital number, since it uses as much as digits as its factorization.

102434305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20486866.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 102434305 is about 10120.9834008361. The cubic root of 102434305 is about 467.8950762542.

Adding to 102434305 its reverse (503434201), we get a palindrome (605868506).

The spelling of 102434305 in words is "one hundred two million, four hundred thirty-four thousand, three hundred five".