15223055243 has 4 divisors (see below), whose sum is σ = 16606969368. Its totient is φ = 13839141120.

The previous prime is 15223055209. The next prime is 15223055249. The reversal of 15223055243 is 34255032251.

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 15223055243 - 2¹⁶ = 15222989707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15223055249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691957046 + ... + 691957067.

It is an arithmetic number, because the mean of its divisors is an integer number (4151742342).

Almost surely, 2^15223055243 is an apocalyptic number.

15223055243 is a deficient number, since it is larger than the sum of its proper divisors (1383914125).

15223055243 is a wasteful number, since it uses less digits than its factorization.

15223055243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383914124.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 15223055243 its reverse (34255032251), we get a palindrome (49478087494).

The spelling of 15223055243 in words is "fifteen billion, two hundred twenty-three million, fifty-five thousand, two hundred forty-three".