19119479 has 2 divisors, whose sum is σ = 19119480. Its totient is φ = 19119478.

The previous prime is 19119473. The next prime is 19119493. The reversal of 19119479 is 97491191.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19119479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19119473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9559739 + 9559740.

It is an arithmetic number, because the mean of its divisors is an integer number (9559740).

Almost surely, 2^19119479 is an apocalyptic number.

19119479 is a deficient number, since it is larger than the sum of its proper divisors (1).

19119479 is an equidigital number, since it uses as much as digits as its factorization.

19119479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 41.

The square root of 19119479 is about 4372.5826464459. The cubic root of 19119479 is about 267.3983262826.

The spelling of 19119479 in words is "nineteen million, one hundred nineteen thousand, four hundred seventy-nine".