13149229 has 2 divisors, whose sum is σ = 13149230. Its totient is φ = 13149228.

The previous prime is 13149203. The next prime is 13149263. The reversal of 13149229 is 92294131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12145225 + 1004004 = 3485^2 + 1002^2 .

It is an emirp because it is prime and its reverse (92294131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13149229 - 2¹¹ = 13147181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13149229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13129229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6574614 + 6574615.

It is an arithmetic number, because the mean of its divisors is an integer number (6574615).

Almost surely, 2^13149229 is an apocalyptic number.

It is an amenable number.

13149229 is a deficient number, since it is larger than the sum of its proper divisors (1).

13149229 is an equidigital number, since it uses as much as digits as its factorization.

13149229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 13149229 is about 3626.1865644227. The cubic root of 13149229 is about 236.0297590070.

The spelling of 13149229 in words is "thirteen million, one hundred forty-nine thousand, two hundred twenty-nine".