15222473 has 16 divisors (see below), whose sum is σ = 18011136. Its totient is φ = 12594960.

The previous prime is 15222469. The next prime is 15222479. The reversal of 15222473 is 37422251.

It is not a de Polignac number, because 15222473 - 2² = 15222469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15222479) 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 15 ways as a sum of consecutive naturals, for example, 30758 + ... + 31248.

It is an arithmetic number, because the mean of its divisors is an integer number (1125696).

Almost surely, 2^15222473 is an apocalyptic number.

It is an amenable number.

15222473 is a deficient number, since it is larger than the sum of its proper divisors (2788663).

15222473 is a wasteful number, since it uses less digits than its factorization.

15222473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its digits is 3360, while the sum is 26.

The square root of 15222473 is about 3901.5987748614. The cubic root of 15222473 is about 247.8344856847.

The spelling of 15222473 in words is "fifteen million, two hundred twenty-two thousand, four hundred seventy-three".