1491676519 has 2 divisors, whose sum is σ = 1491676520. Its totient is φ = 1491676518.

The previous prime is 1491676513. The next prime is 1491676561. The reversal of 1491676519 is 9156761941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1491676519 - 2²⁵ = 1458122087 is a prime.

It is a super-2 number, since 2×1491676519² = 4450197674671914722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1491676513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745838259 + 745838260.

It is an arithmetic number, because the mean of its divisors is an integer number (745838260).

Almost surely, 2^1491676519 is an apocalyptic number.

1491676519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1491676519 is an equidigital number, since it uses as much as digits as its factorization.

1491676519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 49.

The square root of 1491676519 is about 38622.2283018471. The cubic root of 1491676519 is about 1142.5929791363.

The spelling of 1491676519 in words is "one billion, four hundred ninety-one million, six hundred seventy-six thousand, five hundred nineteen".