13148869 has 2 divisors, whose sum is σ = 13148870. Its totient is φ = 13148868.

The previous prime is 13148857. The next prime is 13148879. The reversal of 13148869 is 96884131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 3150625 = 3162^2 + 1775^2 .

It is an emirp because it is prime and its reverse (96884131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13148869 - 2¹⁵ = 13116101 is a prime.

It is a super-2 number, since 2×13148869² = 345785511958322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13148809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6574434 + 6574435.

It is an arithmetic number, because the mean of its divisors is an integer number (6574435).

Almost surely, 2^13148869 is an apocalyptic number.

It is an amenable number.

13148869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13148869 is an equidigital number, since it uses as much as digits as its factorization.

13148869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 13148869 is about 3626.1369251588. The cubic root of 13148869 is about 236.0276049774.

The spelling of 13148869 in words is "thirteen million, one hundred forty-eight thousand, eight hundred sixty-nine".