7137222 has 16 divisors (see below), whose sum is σ = 14895360. Its totient is φ = 2275592.

The previous prime is 7137209. The next prime is 7137259. The reversal of 7137222 is 2227317.

It is a junction number, because it is equal to n+sod(n) for n = 7137192 and 7137201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25722 + ... + 25997.

It is an arithmetic number, because the mean of its divisors is an integer number (930960).

Almost surely, 2^7137222 is an apocalyptic number.

7137222 is an abundant number, since it is smaller than the sum of its proper divisors (7758138).

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

7137222 is a wasteful number, since it uses less digits than its factorization.

7137222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51747.

The product of its digits is 1176, while the sum is 24.

The square root of 7137222 is about 2671.5579724198. The cubic root of 7137222 is about 192.5350203335.

The spelling of 7137222 in words is "seven million, one hundred thirty-seven thousand, two hundred twenty-two".