1600081 has 8 divisors (see below), whose sum is σ = 1840320. Its totient is φ = 1362768.

The previous prime is 1600069. The next prime is 1600097. The reversal of 1600081 is 1800061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1600081 is a prime.

It is a super-2 number, since 2×1600081² = 5120518413122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1600051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615 + ... + 1891.

It is an arithmetic number, because the mean of its divisors is an integer number (230040).

2^1600081 is an apocalyptic number.

It is an amenable number.

1600081 is a deficient number, since it is larger than the sum of its proper divisors (240239).

1600081 is a wasteful number, since it uses less digits than its factorization.

1600081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1600081 is about 1264.9430817234. The cubic root of 1600081 is about 116.9626832072.

The spelling of 1600081 in words is "one million, six hundred thousand, eighty-one".