10091219 has 4 divisors (see below), whose sum is σ = 10189296. Its totient is φ = 9993144.

The previous prime is 10091203. The next prime is 10091231. The reversal of 10091219 is 91219001.

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 10091219 - 2⁴ = 10091203 is a prime.

It is a super-2 number, since 2×10091219² = 203665401811922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 10091194 and 10091203.

It is not an unprimeable number, because it can be changed into a prime (10091519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48884 + ... + 49089.

It is an arithmetic number, because the mean of its divisors is an integer number (2547324).

Almost surely, 2^10091219 is an apocalyptic number.

10091219 is a deficient number, since it is larger than the sum of its proper divisors (98077).

10091219 is an equidigital number, since it uses as much as digits as its factorization.

10091219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98076.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 10091219 is about 3176.6679083593. The cubic root of 10091219 is about 216.0965717577.

It can be divided in two parts, 100 and 91219, that added together give a palindrome (91319).

The spelling of 10091219 in words is "ten million, ninety-one thousand, two hundred nineteen".