13124149 has 2 divisors, whose sum is σ = 13124150. Its totient is φ = 13124148.

The previous prime is 13124147. The next prime is 13124179. The reversal of 13124149 is 94142131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 34225 = 3618^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 13124149 - 2¹ = 13124147 is a prime.

Together with 13124147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13124143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562074 + 6562075.

It is an arithmetic number, because the mean of its divisors is an integer number (6562075).

Almost surely, 2^13124149 is an apocalyptic number.

It is an amenable number.

13124149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13124149 is an equidigital number, since it uses as much as digits as its factorization.

13124149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 13124149 is about 3622.7267354853. The cubic root of 13124149 is about 235.8796008008.

The spelling of 13124149 in words is "thirteen million, one hundred twenty-four thousand, one hundred forty-nine".