1931464919 has 2 divisors, whose sum is σ = 1931464920. Its totient is φ = 1931464918.

The previous prime is 1931464891. The next prime is 1931464921. The reversal of 1931464919 is 9194641391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1931464919 - 2²⁰ = 1930416343 is a prime.

It is a super-2 number, since 2×1931464919² = 7461113466655353122, which contains 22 as substring.

Together with 1931464921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1931464999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965732459 + 965732460.

It is an arithmetic number, because the mean of its divisors is an integer number (965732460).

Almost surely, 2^1931464919 is an apocalyptic number.

1931464919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1931464919 is an equidigital number, since it uses as much as digits as its factorization.

1931464919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 47.

The square root of 1931464919 is about 43948.4347730383. The cubic root of 1931464919 is about 1245.3619951326.

The spelling of 1931464919 in words is "one billion, nine hundred thirty-one million, four hundred sixty-four thousand, nine hundred nineteen".