1138219 has 4 divisors (see below), whose sum is σ = 1141000. Its totient is φ = 1135440.

The previous prime is 1138213. The next prime is 1138237. The reversal of 1138219 is 9128311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1138219 - 2⁷ = 1138091 is a prime.

It is a super-2 number, since 2×1138219² = 2591084983922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1138193 and 1138202.

It is not an unprimeable number, because it can be changed into a prime (1138213) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 642 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (285250).

2^1138219 is an apocalyptic number.

1138219 is a deficient number, since it is larger than the sum of its proper divisors (2781).

1138219 is an equidigital number, since it uses as much as digits as its factorization.

1138219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780.

The product of its digits is 432, while the sum is 25.

The square root of 1138219 is about 1066.8734695361. The cubic root of 1138219 is about 104.4099634262.

The spelling of 1138219 in words is "one million, one hundred thirty-eight thousand, two hundred nineteen".