15243379 has 2 divisors, whose sum is σ = 15243380. Its totient is φ = 15243378.

The previous prime is 15243367. The next prime is 15243401. The reversal of 15243379 is 97334251.

15243379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15243379 - 2⁷ = 15243251 is a prime.

It is not a weakly prime, because it can be changed into another prime (15243359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7621689 + 7621690.

It is an arithmetic number, because the mean of its divisors is an integer number (7621690).

Almost surely, 2^15243379 is an apocalyptic number.

15243379 is a deficient number, since it is larger than the sum of its proper divisors (1).

15243379 is an equidigital number, since it uses as much as digits as its factorization.

15243379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 15243379 is about 3904.2770137376. The cubic root of 15243379 is about 247.9478894587.

The spelling of 15243379 in words is "fifteen million, two hundred forty-three thousand, three hundred seventy-nine".