1419864491 has 2 divisors, whose sum is σ = 1419864492. Its totient is φ = 1419864490.

The previous prime is 1419864443. The next prime is 1419864521. The reversal of 1419864491 is 1944689141.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1944689141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1419864491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1419863491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709932245 + 709932246.

It is an arithmetic number, because the mean of its divisors is an integer number (709932246).

Almost surely, 2^1419864491 is an apocalyptic number.

1419864491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1419864491 is an equidigital number, since it uses as much as digits as its factorization.

1419864491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 47.

The square root of 1419864491 is about 37681.0893021951. The cubic root of 1419864491 is about 1123.9551097496.

The spelling of 1419864491 in words is "one billion, four hundred nineteen million, eight hundred sixty-four thousand, four hundred ninety-one".