15155243 has 4 divisors (see below), whose sum is σ = 15231600. Its totient is φ = 15078888.

The previous prime is 15155209. The next prime is 15155263. The reversal of 15155243 is 34255151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15155243 - 2⁸ = 15154987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15155263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37880 + ... + 38277.

It is an arithmetic number, because the mean of its divisors is an integer number (3807900).

Almost surely, 2^15155243 is an apocalyptic number.

15155243 is a deficient number, since it is larger than the sum of its proper divisors (76357).

15155243 is an equidigital number, since it uses as much as digits as its factorization.

15155243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76356.

The product of its digits is 3000, while the sum is 26.

The square root of 15155243 is about 3892.9735421654. The cubic root of 15155243 is about 247.4690938519.

The spelling of 15155243 in words is "fifteen million, one hundred fifty-five thousand, two hundred forty-three".