15224973 has 4 divisors (see below), whose sum is σ = 20299968. Its totient is φ = 10149980.

The previous prime is 15224927. The next prime is 15224977. The reversal of 15224973 is 37942251.

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 15224973 - 2⁸ = 15224717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15224977) 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, 2537493 + ... + 2537498.

It is an arithmetic number, because the mean of its divisors is an integer number (5074992).

Almost surely, 2^15224973 is an apocalyptic number.

It is an amenable number.

15224973 is a deficient number, since it is larger than the sum of its proper divisors (5074995).

15224973 is an equidigital number, since it uses as much as digits as its factorization.

15224973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074994.

The product of its digits is 15120, while the sum is 33.

The square root of 15224973 is about 3901.9191431910. The cubic root of 15224973 is about 247.8480522999.

The spelling of 15224973 in words is "fifteen million, two hundred twenty-four thousand, nine hundred seventy-three".