13142824 has 8 divisors (see below), whose sum is σ = 24642810. Its totient is φ = 6571408.

The previous prime is 13142797. The next prime is 13142839. The reversal of 13142824 is 42824131.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 52900 = 3618^2 + 230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821419 + ... + 821434.

Almost surely, 2^13142824 is an apocalyptic number.

It is an amenable number.

13142824 is a deficient number, since it is larger than the sum of its proper divisors (11499986).

13142824 is a wasteful number, since it uses less digits than its factorization.

13142824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642859 (or 1642855 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 13142824 is about 3625.3032976566. The cubic root of 13142824 is about 235.9914293546.

Adding to 13142824 its reverse (42824131), we get a palindrome (55966955).

The spelling of 13142824 in words is "thirteen million, one hundred forty-two thousand, eight hundred twenty-four".