13142709 has 8 divisors (see below), whose sum is σ = 19470720. Its totient is φ = 8761788.

The previous prime is 13142693. The next prime is 13142711. The reversal of 13142709 is 90724131.

It is not a de Polignac number, because 13142709 - 2⁴ = 13142693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 486767 = 13142709 / (1 + 3 + 1 + 4 + 2 + 7 + 0 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13142749) 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 7 ways as a sum of consecutive naturals, for example, 243357 + ... + 243410.

It is an arithmetic number, because the mean of its divisors is an integer number (2433840).

Almost surely, 2^13142709 is an apocalyptic number.

It is an amenable number.

13142709 is a deficient number, since it is larger than the sum of its proper divisors (6328011).

13142709 is an equidigital number, since it uses as much as digits as its factorization.

13142709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486776 (or 486770 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13142709 is about 3625.2874368800. The cubic root of 13142709 is about 235.9907410425.

The spelling of 13142709 in words is "thirteen million, one hundred forty-two thousand, seven hundred nine".