1912481771 has 4 divisors (see below), whose sum is σ = 1924214952. Its totient is φ = 1900748592.

The previous prime is 1912481741. The next prime is 1912481797. The reversal of 1912481771 is 1771842191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1912481771 - 2¹⁰ = 1912480747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1912481731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5866346 + ... + 5866671.

It is an arithmetic number, because the mean of its divisors is an integer number (481053738).

Almost surely, 2^1912481771 is an apocalyptic number.

1912481771 is a deficient number, since it is larger than the sum of its proper divisors (11733181).

1912481771 is a wasteful number, since it uses less digits than its factorization.

1912481771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11733180.

The product of its digits is 28224, while the sum is 41.

The square root of 1912481771 is about 43731.9307943292. The cubic root of 1912481771 is about 1241.2685965626.

The spelling of 1912481771 in words is "one billion, nine hundred twelve million, four hundred eighty-one thousand, seven hundred seventy-one".