19413005 has 4 divisors (see below), whose sum is σ = 23295612. Its totient is φ = 15530400.

The previous prime is 19413001. The next prime is 19413007. The reversal of 19413005 is 50031491.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7043716 + 12369289 = 2654^2 + 3517^2 .

It is not a de Polignac number, because 19413005 - 2² = 19413001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19413001) 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, 1941296 + ... + 1941305.

It is an arithmetic number, because the mean of its divisors is an integer number (5823903).

Almost surely, 2^19413005 is an apocalyptic number.

It is an amenable number.

19413005 is a deficient number, since it is larger than the sum of its proper divisors (3882607).

19413005 is an equidigital number, since it uses as much as digits as its factorization.

19413005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882606.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 19413005 is about 4406.0191783514. The cubic root of 19413005 is about 268.7597667264.

Adding to 19413005 its reverse (50031491), we get a palindrome (69444496).

The spelling of 19413005 in words is "nineteen million, four hundred thirteen thousand, five".