1951984163 has 2 divisors, whose sum is σ = 1951984164. Its totient is φ = 1951984162.

The previous prime is 1951984127. The next prime is 1951984187. The reversal of 1951984163 is 3614891591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1951984163 - 2¹⁰ = 1951983139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1951984193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975992081 + 975992082.

It is an arithmetic number, because the mean of its divisors is an integer number (975992082).

Almost surely, 2^1951984163 is an apocalyptic number.

1951984163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1951984163 is an equidigital number, since it uses as much as digits as its factorization.

1951984163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 47.

The square root of 1951984163 is about 44181.2648415593. The cubic root of 1951984163 is about 1249.7565740381.

The spelling of 1951984163 in words is "one billion, nine hundred fifty-one million, nine hundred eighty-four thousand, one hundred sixty-three".