1681052599 has 12 divisors (see below), whose sum is σ = 1847341800. Its totient is φ = 1527602048.

The previous prime is 1681052567. The next prime is 1681052623. The reversal of 1681052599 is 9952501861.

It is not a de Polignac number, because 1681052599 - 2⁵ = 1681052567 is a prime.

It is a super-3 number, since 3×1681052599³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681052099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91909 + ... + 108670.

It is an arithmetic number, because the mean of its divisors is an integer number (153945150).

Almost surely, 2^1681052599 is an apocalyptic number.

1681052599 is a deficient number, since it is larger than the sum of its proper divisors (166289201).

1681052599 is a wasteful number, since it uses less digits than its factorization.

1681052599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200642 (or 200625 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 46.

The square root of 1681052599 is about 41000.6414462018. The cubic root of 1681052599 is about 1189.0326151590.

The spelling of 1681052599 in words is "one billion, six hundred eighty-one million, fifty-two thousand, five hundred ninety-nine".