7138322 has 4 divisors (see below), whose sum is σ = 10707486. Its totient is φ = 3569160.

The previous prime is 7138309. The next prime is 7138331. The reversal of 7138322 is 2238317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2238317 = 139 ⋅16103.

It can be written as a sum of positive squares in only one way, i.e., 4800481 + 2337841 = 2191^2 + 1529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7138291 and 7138300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1784579 + ... + 1784582.

Almost surely, 2^7138322 is an apocalyptic number.

7138322 is a deficient number, since it is larger than the sum of its proper divisors (3569164).

7138322 is a wasteful number, since it uses less digits than its factorization.

7138322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569163.

The product of its digits is 2016, while the sum is 26.

The square root of 7138322 is about 2671.7638368688. The cubic root of 7138322 is about 192.5449110932.

The spelling of 7138322 in words is "seven million, one hundred thirty-eight thousand, three hundred twenty-two".