19414091 has 4 divisors (see below), whose sum is σ = 20040384. Its totient is φ = 18787800.

The previous prime is 19414081. The next prime is 19414111. The reversal of 19414091 is 19041491.

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 19414091 - 2¹⁸ = 19151947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19414081) 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 3 ways as a sum of consecutive naturals, for example, 313100 + ... + 313161.

It is an arithmetic number, because the mean of its divisors is an integer number (5010096).

Almost surely, 2^19414091 is an apocalyptic number.

19414091 is a deficient number, since it is larger than the sum of its proper divisors (626293).

19414091 is an equidigital number, since it uses as much as digits as its factorization.

19414091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626292.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 19414091 is about 4406.1424171263. The cubic root of 19414091 is about 268.7647782751.

The spelling of 19414091 in words is "nineteen million, four hundred fourteen thousand, ninety-one".