15244432243 has 2 divisors, whose sum is σ = 15244432244. Its totient is φ = 15244432242.

The previous prime is 15244432207. The next prime is 15244432303. The reversal of 15244432243 is 34223444251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15244432243 - 2²¹ = 15242335091 is a prime.

It is a super-2 number, since 2×15244432243² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15244432199 and 15244432208.

It is not a weakly prime, because it can be changed into another prime (15241432243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7622216121 + 7622216122.

It is an arithmetic number, because the mean of its divisors is an integer number (7622216122).

Almost surely, 2^15244432243 is an apocalyptic number.

15244432243 is a deficient number, since it is larger than the sum of its proper divisors (1).

15244432243 is an equidigital number, since it uses as much as digits as its factorization.

15244432243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 34.

Adding to 15244432243 its reverse (34223444251), we get a palindrome (49467876494).

The spelling of 15244432243 in words is "fifteen billion, two hundred forty-four million, four hundred thirty-two thousand, two hundred forty-three".