13751279 has 2 divisors, whose sum is σ = 13751280. Its totient is φ = 13751278.

The previous prime is 13751273. The next prime is 13751303. The reversal of 13751279 is 97215731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13751279 - 2¹² = 13747183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13751273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6875639 + 6875640.

It is an arithmetic number, because the mean of its divisors is an integer number (6875640).

Almost surely, 2^13751279 is an apocalyptic number.

13751279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13751279 is an equidigital number, since it uses as much as digits as its factorization.

13751279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 35.

The square root of 13751279 is about 3708.2716998623. The cubic root of 13751279 is about 239.5784207756.

The spelling of 13751279 in words is "thirteen million, seven hundred fifty-one thousand, two hundred seventy-nine".