15075243 has 24 divisors (see below), whose sum is σ = 23688288. Its totient is φ = 9199872.

The previous prime is 15075239. The next prime is 15075251. The reversal of 15075243 is 34257051.

It is a happy number.

It is not a de Polignac number, because 15075243 - 2² = 15075239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15075223) 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 in 23 ways as a sum of consecutive naturals, for example, 4330 + ... + 6992.

It is an arithmetic number, because the mean of its divisors is an integer number (987012).

Almost surely, 2^15075243 is an apocalyptic number.

15075243 is a deficient number, since it is larger than the sum of its proper divisors (8613045).

15075243 is a wasteful number, since it uses less digits than its factorization.

15075243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 15075243 is about 3882.6850245674. The cubic root of 15075243 is about 247.0328869431.

The spelling of 15075243 in words is "fifteen million, seventy-five thousand, two hundred forty-three".