1680151282 has 4 divisors (see below), whose sum is σ = 2520226926. Its totient is φ = 840075640.

The previous prime is 1680151217. The next prime is 1680151309. The reversal of 1680151282 is 2821510861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2821510861 = 13 ⋅217039297.

It can be written as a sum of positive squares in only one way, i.e., 1608731881 + 71419401 = 40109^2 + 8451^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 420037819 + ... + 420037822.

Almost surely, 2^1680151282 is an apocalyptic number.

1680151282 is a deficient number, since it is larger than the sum of its proper divisors (840075644).

1680151282 is an equidigital number, since it uses as much as digits as its factorization.

1680151282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840075643.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 1680151282 is about 40989.6484737305. The cubic root of 1680151282 is about 1188.8200723547.

The spelling of 1680151282 in words is "one billion, six hundred eighty million, one hundred fifty-one thousand, two hundred eighty-two".