13142105 has 8 divisors (see below), whose sum is σ = 16698312. Its totient is φ = 9895168.

The previous prime is 13142083. The next prime is 13142111. The reversal of 13142105 is 50124131.

It can be written as a sum of positive squares in 4 ways, for example, as 582169 + 12559936 = 763^2 + 3544^2 .

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 13142105 - 2¹⁰ = 13141081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon 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, 77222 + ... + 77391.

It is an arithmetic number, because the mean of its divisors is an integer number (2087289).

Almost surely, 2^13142105 is an apocalyptic number.

It is an amenable number.

13142105 is a deficient number, since it is larger than the sum of its proper divisors (3556207).

13142105 is a wasteful number, since it uses less digits than its factorization.

13142105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154635.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 13142105 is about 3625.2041321835. The cubic root of 13142105 is about 235.9871258418.

Adding to 13142105 its reverse (50124131), we get a palindrome (63266236).

The spelling of 13142105 in words is "thirteen million, one hundred forty-two thousand, one hundred five".