15222043 has 4 divisors (see below), whose sum is σ = 15576088. Its totient is φ = 14868000.

The previous prime is 15222041. The next prime is 15222049. The reversal of 15222043 is 34022251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34022251 = 41 ⋅829811.

It is a cyclic number.

It is not a de Polignac number, because 15222043 - 2¹ = 15222041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15222043.

It is not an unprimeable number, because it can be changed into a prime (15222041) 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, 176958 + ... + 177043.

It is an arithmetic number, because the mean of its divisors is an integer number (3894022).

Almost surely, 2^15222043 is an apocalyptic number.

15222043 is a deficient number, since it is larger than the sum of its proper divisors (354045).

15222043 is an equidigital number, since it uses as much as digits as its factorization.

15222043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354044.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 15222043 is about 3901.5436688572. The cubic root of 15222043 is about 247.8321520772.

Adding to 15222043 its reverse (34022251), we get a palindrome (49244294).

The spelling of 15222043 in words is "fifteen million, two hundred twenty-two thousand, forty-three".