15273222 has 16 divisors (see below), whose sum is σ = 31123440. Its totient is φ = 4994912.

The previous prime is 15273221. The next prime is 15273229. The reversal of 15273222 is 22237251.

It is a happy number.

It is a super-2 number, since 2×15273222² = 466542620522568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15273192 and 15273201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15273221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23697 + ... + 24332.

It is an arithmetic number, because the mean of its divisors is an integer number (1945215).

Almost surely, 2^15273222 is an apocalyptic number.

15273222 is an abundant number, since it is smaller than the sum of its proper divisors (15850218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15273222 is a wasteful number, since it uses less digits than its factorization.

15273222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48087.

The product of its digits is 1680, while the sum is 24.

The square root of 15273222 is about 3908.0969793494. The cubic root of 15273222 is about 248.1095921291.

The spelling of 15273222 in words is "fifteen million, two hundred seventy-three thousand, two hundred twenty-two".