13641019 has 8 divisors (see below), whose sum is σ = 15952640. Its totient is φ = 11420136.

The previous prime is 13640989. The next prime is 13641041. The reversal of 13641019 is 91014631.

13641019 is nontrivially palindromic in base 11.

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

It is not a de Polignac number, because 13641019 - 2²³ = 5252411 is a prime.

It is a super-2 number, since 2×13641019² = 372154798716722, which contains 22 as substring.

It is a Duffinian number.

13641019 is a nontrivial repdigit in base 11.

It is a plaindrome in base 11.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 13640984 and 13641002.

It is not an unprimeable number, because it can be changed into a prime (13641079) 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 7 ways as a sum of consecutive naturals, for example, 22359 + ... + 22960.

It is an arithmetic number, because the mean of its divisors is an integer number (1994080).

Almost surely, 2^13641019 is an apocalyptic number.

13641019 is a deficient number, since it is larger than the sum of its proper divisors (2311621).

13641019 is an equidigital number, since it uses as much as digits as its factorization.

13641019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45369.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13641019 is about 3693.3750148069. The cubic root of 13641019 is about 238.9363754006.

The spelling of 13641019 in words is "thirteen million, six hundred forty-one thousand, nineteen".