7147222 has 8 divisors (see below), whose sum is σ = 10732896. Its totient is φ = 3569592.

The previous prime is 7147219. The next prime is 7147223. The reversal of 7147222 is 2227417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7147223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1308 + ... + 4000.

It is an arithmetic number, because the mean of its divisors is an integer number (1341612).

Almost surely, 2^7147222 is an apocalyptic number.

7147222 is a deficient number, since it is larger than the sum of its proper divisors (3585674).

7147222 is a wasteful number, since it uses less digits than its factorization.

7147222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022.

The product of its digits is 1568, while the sum is 25.

The square root of 7147222 is about 2673.4288844104. The cubic root of 7147222 is about 192.6248989864.

The spelling of 7147222 in words is "seven million, one hundred forty-seven thousand, two hundred twenty-two".