15228943 has 2 divisors, whose sum is σ = 15228944. Its totient is φ = 15228942.

The previous prime is 15228931. The next prime is 15228953. The reversal of 15228943 is 34982251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15228943 - 2²¹ = 13131791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15228899 and 15228908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15228953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7614471 + 7614472.

It is an arithmetic number, because the mean of its divisors is an integer number (7614472).

Almost surely, 2^15228943 is an apocalyptic number.

15228943 is a deficient number, since it is larger than the sum of its proper divisors (1).

15228943 is an equidigital number, since it uses as much as digits as its factorization.

15228943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 15228943 is about 3902.4278340541. The cubic root of 15228943 is about 247.8695930334.

The spelling of 15228943 in words is "fifteen million, two hundred twenty-eight thousand, nine hundred forty-three".