1681527922 has 8 divisors (see below), whose sum is σ = 2526291072. Its totient is φ = 839430900.

The previous prime is 1681527811. The next prime is 1681527929. The reversal of 1681527922 is 2297251861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1681527929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664954 + ... + 667477.

It is an arithmetic number, because the mean of its divisors is an integer number (315786384).

Almost surely, 2^1681527922 is an apocalyptic number.

1681527922 is a deficient number, since it is larger than the sum of its proper divisors (844763150).

1681527922 is a wasteful number, since it uses less digits than its factorization.

1681527922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333064.

The product of its digits is 120960, while the sum is 43.

The square root of 1681527922 is about 41006.4375677771. The cubic root of 1681527922 is about 1189.1446721900.

The spelling of 1681527922 in words is "one billion, six hundred eighty-one million, five hundred twenty-seven thousand, nine hundred twenty-two".