103434505 has 4 divisors (see below), whose sum is σ = 124121412. Its totient is φ = 82747600.

The previous prime is 103434469. The next prime is 103434509. The reversal of 103434505 is 505434301.

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 70291456 + 33143049 = 8384^2 + 5757^2 .

It is not a de Polignac number, because 103434505 - 2¹¹ = 103432457 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103434505.

It is not an unprimeable number, because it can be changed into a prime (103434509) 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, 10343446 + ... + 10343455.

It is an arithmetic number, because the mean of its divisors is an integer number (31030353).

Almost surely, 2^103434505 is an apocalyptic number.

It is an amenable number.

103434505 is a deficient number, since it is larger than the sum of its proper divisors (20686907).

103434505 is an equidigital number, since it uses as much as digits as its factorization.

103434505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20686906.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 103434505 is about 10170.2755616552. The cubic root of 103434505 is about 469.4130366994.

Adding to 103434505 its reverse (505434301), we get a palindrome (608868806).

The spelling of 103434505 in words is "one hundred three million, four hundred thirty-four thousand, five hundred five".