15223441 has 4 divisors (see below), whose sum is σ = 15547392. Its totient is φ = 14899492.

The previous prime is 15223433. The next prime is 15223459. The reversal of 15223441 is 14432251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15223441 - 2³ = 15223433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15223841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161905 + ... + 161998.

It is an arithmetic number, because the mean of its divisors is an integer number (3886848).

Almost surely, 2^15223441 is an apocalyptic number.

It is an amenable number.

15223441 is a deficient number, since it is larger than the sum of its proper divisors (323951).

15223441 is an equidigital number, since it uses as much as digits as its factorization.

15223441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323950.

The product of its digits is 960, while the sum is 22.

The square root of 15223441 is about 3901.7228245994. The cubic root of 15223441 is about 247.8397388543.

Adding to 15223441 its reverse (14432251), we get a palindrome (29655692).

The spelling of 15223441 in words is "fifteen million, two hundred twenty-three thousand, four hundred forty-one".