13142746 has 8 divisors (see below), whose sum is σ = 19753524. Its totient is φ = 6558240.

The previous prime is 13142743. The next prime is 13142747. The reversal of 13142746 is 64724131.

It can be written as a sum of positive squares in 2 ways, for example, as 12852225 + 290521 = 3585^2 + 539^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13142743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5265 + ... + 7348.

Almost surely, 2^13142746 is an apocalyptic number.

13142746 is a deficient number, since it is larger than the sum of its proper divisors (6610778).

13142746 is a wasteful number, since it uses less digits than its factorization.

13142746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13136.

The product of its digits is 4032, while the sum is 28.

The square root of 13142746 is about 3625.2925399201. The cubic root of 13142746 is about 235.9909624998.

Adding to 13142746 its reverse (64724131), we get a palindrome (77866877).

The spelling of 13142746 in words is "thirteen million, one hundred forty-two thousand, seven hundred forty-six".