1001992919 has 2 divisors, whose sum is σ = 1001992920. Its totient is φ = 1001992918.

The previous prime is 1001992877. The next prime is 1001992951. The reversal of 1001992919 is 9192991001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001992919 is a prime.

It is a super-2 number, since 2×1001992919² = 2007979619452281122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001992969) 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, 500996459 + 500996460.

It is an arithmetic number, because the mean of its divisors is an integer number (500996460).

Almost surely, 2^1001992919 is an apocalyptic number.

1001992919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001992919 is an equidigital number, since it uses as much as digits as its factorization.

1001992919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 41.

The square root of 1001992919 is about 31654.2717338434. The cubic root of 1001992919 is about 1000.6638655184.

The spelling of 1001992919 in words is "one billion, one million, nine hundred ninety-two thousand, nine hundred nineteen".