15166222 has 4 divisors (see below), whose sum is σ = 22749336. Its totient is φ = 7583110.

The previous prime is 15166211. The next prime is 15166243. The reversal of 15166222 is 22266151.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3791554 + ... + 3791557.

It is an arithmetic number, because the mean of its divisors is an integer number (5687334).

Almost surely, 2^15166222 is an apocalyptic number.

15166222 is a deficient number, since it is larger than the sum of its proper divisors (7583114).

15166222 is an equidigital number, since it uses as much as digits as its factorization.

15166222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583113.

The product of its digits is 1440, while the sum is 25.

The square root of 15166222 is about 3894.3833915012. The cubic root of 15166222 is about 247.5288379145.

The spelling of 15166222 in words is "fifteen million, one hundred sixty-six thousand, two hundred twenty-two".