103403405 has 16 divisors (see below), whose sum is σ = 143756544. Its totient is φ = 69932160.

The previous prime is 103403387. The next prime is 103403413. The reversal of 103403405 is 504304301.

It is not a de Polignac number, because 103403405 - 2²⁰ = 102354829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17681 + ... + 22790.

It is an arithmetic number, because the mean of its divisors is an integer number (8984784).

Almost surely, 2^103403405 is an apocalyptic number.

It is an amenable number.

103403405 is a deficient number, since it is larger than the sum of its proper divisors (40353139).

103403405 is an equidigital number, since it uses as much as digits as its factorization.

103403405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40556.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 103403405 is about 10168.7464812532. The cubic root of 103403405 is about 469.3659853186.

Adding to 103403405 its reverse (504304301), we get a palindrome (607707706).

The spelling of 103403405 in words is "one hundred three million, four hundred three thousand, four hundred five".