103406405 has 8 divisors (see below), whose sum is σ = 125248032. Its totient is φ = 81951568.

The previous prime is 103406363. The next prime is 103406419. The reversal of 103406405 is 504604301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103406405 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 7 ways as a sum of consecutive naturals, for example, 96107 + ... + 97176.

It is an arithmetic number, because the mean of its divisors is an integer number (15656004).

Almost surely, 2^103406405 is an apocalyptic number.

It is an amenable number.

103406405 is a deficient number, since it is larger than the sum of its proper divisors (21841627).

103406405 is a wasteful number, since it uses less digits than its factorization.

103406405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193395.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 103406405 is about 10168.8939909904. The cubic root of 103406405 is about 469.3705244481.

The spelling of 103406405 in words is "one hundred three million, four hundred six thousand, four hundred five".