7138219 has 8 divisors (see below), whose sum is σ = 7953408. Its totient is φ = 6350760.

The previous prime is 7138217. The next prime is 7138237. The reversal of 7138219 is 9128317.

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

It is a cyclic number.

It is not a de Polignac number, because 7138219 - 2¹ = 7138217 is a prime.

It is a super-2 number, since 2×7138219² = 101908340983922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7138217) 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, 6387 + ... + 7420.

It is an arithmetic number, because the mean of its divisors is an integer number (994176).

Almost surely, 2^7138219 is an apocalyptic number.

7138219 is a deficient number, since it is larger than the sum of its proper divisors (815189).

7138219 is a wasteful number, since it uses less digits than its factorization.

7138219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13865.

The product of its digits is 3024, while the sum is 31.

The square root of 7138219 is about 2671.7445611435. The cubic root of 7138219 is about 192.5439850015.

The spelling of 7138219 in words is "seven million, one hundred thirty-eight thousand, two hundred nineteen".