15455243 has 2 divisors, whose sum is σ = 15455244. Its totient is φ = 15455242.

The previous prime is 15455239. The next prime is 15455263. The reversal of 15455243 is 34255451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15455243 - 2² = 15455239 is a prime.

It is not a weakly prime, because it can be changed into another prime (15455263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7727621 + 7727622.

It is an arithmetic number, because the mean of its divisors is an integer number (7727622).

Almost surely, 2^15455243 is an apocalyptic number.

15455243 is a deficient number, since it is larger than the sum of its proper divisors (1).

15455243 is an equidigital number, since it uses as much as digits as its factorization.

15455243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 29.

The square root of 15455243 is about 3931.3156830761. The cubic root of 15455243 is about 249.0913306146.

The spelling of 15455243 in words is "fifteen million, four hundred fifty-five thousand, two hundred forty-three".