13222375 has 16 divisors (see below), whose sum is σ = 16642080. Its totient is φ = 10488000.

The previous prime is 13222343. The next prime is 13222411. The reversal of 13222375 is 57322231.

It is not a de Polignac number, because 13222375 - 2⁵ = 13222343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16995 + ... + 17755.

It is an arithmetic number, because the mean of its divisors is an integer number (1040130).

Almost surely, 2^13222375 is an apocalyptic number.

13222375 is a deficient number, since it is larger than the sum of its proper divisors (3419705).

13222375 is an equidigital number, since it uses as much as digits as its factorization.

13222375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 905 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 13222375 is about 3636.2583791584. The cubic root of 13222375 is about 236.4666089121.

The spelling of 13222375 in words is "thirteen million, two hundred twenty-two thousand, three hundred seventy-five".