19419001 has 4 divisors (see below), whose sum is σ = 22193152. Its totient is φ = 16644852.

The previous prime is 19418983. The next prime is 19419011. The reversal of 19419001 is 10091491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 19419001 - 2⁹ = 19418489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19419011) 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, 1387065 + ... + 1387078.

It is an arithmetic number, because the mean of its divisors is an integer number (5548288).

Almost surely, 2^19419001 is an apocalyptic number.

It is an amenable number.

19419001 is a deficient number, since it is larger than the sum of its proper divisors (2774151).

19419001 is an equidigital number, since it uses as much as digits as its factorization.

19419001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774150.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 19419001 is about 4406.6995586266. The cubic root of 19419001 is about 268.7874340501.

The spelling of 19419001 in words is "nineteen million, four hundred nineteen thousand, one".