13144277 has 2 divisors, whose sum is σ = 13144278. Its totient is φ = 13144276.

The previous prime is 13144267. The next prime is 13144291. The reversal of 13144277 is 77244131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7789681 + 5354596 = 2791^2 + 2314^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144277 - 2¹² = 13140181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13144267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572138 + 6572139.

It is an arithmetic number, because the mean of its divisors is an integer number (6572139).

Almost surely, 2^13144277 is an apocalyptic number.

It is an amenable number.

13144277 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144277 is an equidigital number, since it uses as much as digits as its factorization.

13144277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 13144277 is about 3625.5036891444. The cubic root of 13144277 is about 236.0001256822. Note that the first 3 decimals are identical.

The spelling of 13144277 in words is "thirteen million, one hundred forty-four thousand, two hundred seventy-seven".