13709219 has 4 divisors (see below), whose sum is σ = 14305296. Its totient is φ = 13113144.

The previous prime is 13709183. The next prime is 13709221. The reversal of 13709219 is 91290731.

It is a happy number.

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 13709219 - 2¹⁶ = 13643683 is a prime.

It is a super-2 number, since 2×13709219² = 375885371179922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13709239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298004 + ... + 298049.

It is an arithmetic number, because the mean of its divisors is an integer number (3576324).

Almost surely, 2^13709219 is an apocalyptic number.

13709219 is a deficient number, since it is larger than the sum of its proper divisors (596077).

13709219 is an equidigital number, since it uses as much as digits as its factorization.

13709219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596076.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 13709219 is about 3702.5962512810. The cubic root of 13709219 is about 239.3339111690. Note that the first 3 decimals are identical.

The spelling of 13709219 in words is "thirteen million, seven hundred nine thousand, two hundred nineteen".