13142279 has 2 divisors, whose sum is σ = 13142280. Its totient is φ = 13142278.

The previous prime is 13142231. The next prime is 13142299. The reversal of 13142279 is 97224131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13142279 - 2¹² = 13138183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13142299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571139 + 6571140.

It is an arithmetic number, because the mean of its divisors is an integer number (6571140).

Almost surely, 2^13142279 is an apocalyptic number.

13142279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13142279 is an equidigital number, since it uses as much as digits as its factorization.

13142279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 13142279 is about 3625.2281307526. The cubic root of 13142279 is about 235.9881673183.

The spelling of 13142279 in words is "thirteen million, one hundred forty-two thousand, two hundred seventy-nine".