103942505 has 8 divisors (see below), whose sum is σ = 132068232. Its totient is φ = 78262528.

The previous prime is 103942499. The next prime is 103942523. The reversal of 103942505 is 505249301.

It can be written as a sum of positive squares in 4 ways, for example, as 13920361 + 90022144 = 3731^2 + 9488^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 103942505 - 2⁶ = 103942441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611342 + ... + 611511.

It is an arithmetic number, because the mean of its divisors is an integer number (16508529).

Almost surely, 2^103942505 is an apocalyptic number.

It is an amenable number.

103942505 is a deficient number, since it is larger than the sum of its proper divisors (28125727).

103942505 is a wasteful number, since it uses less digits than its factorization.

103942505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222875.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 103942505 is about 10195.2197131793. The cubic root of 103942505 is about 470.1802613210.

The spelling of 103942505 in words is "one hundred three million, nine hundred forty-two thousand, five hundred five".