1681065413 has 8 divisors (see below), whose sum is σ = 1777274400. Its totient is φ = 1585629648.

The previous prime is 1681065391. The next prime is 1681065431. The reversal of 1681065413 is 3145601861.

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

It is not a de Polignac number, because 1681065413 - 2⁸ = 1681065157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681065473) 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 7 ways as a sum of consecutive naturals, for example, 188831 + ... + 197532.

It is an arithmetic number, because the mean of its divisors is an integer number (222159300).

Almost surely, 2^1681065413 is an apocalyptic number.

It is an amenable number.

1681065413 is a deficient number, since it is larger than the sum of its proper divisors (96208987).

1681065413 is a wasteful number, since it uses less digits than its factorization.

1681065413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386611.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1681065413 is about 41000.7977117519. The cubic root of 1681065413 is about 1189.0356363267.

The spelling of 1681065413 in words is "one billion, six hundred eighty-one million, sixty-five thousand, four hundred thirteen".