13142356 has 12 divisors (see below), whose sum is σ = 23025492. Its totient is φ = 6563648.

The previous prime is 13142351. The next prime is 13142369. The reversal of 13142356 is 65324131.

It can be written as a sum of positive squares in 2 ways, for example, as 6812100 + 6330256 = 2610^2 + 2516^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13142356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13142351) 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, 4296 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (1918791).

Almost surely, 2^13142356 is an apocalyptic number.

It is an amenable number.

13142356 is a deficient number, since it is larger than the sum of its proper divisors (9883136).

13142356 is a wasteful number, since it uses less digits than its factorization.

13142356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770 (or 3768 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 13142356 is about 3625.2387507584. The cubic root of 13142356 is about 235.9886281986.

Adding to 13142356 its reverse (65324131), we get a palindrome (78466487).

The spelling of 13142356 in words is "thirteen million, one hundred forty-two thousand, three hundred fifty-six".