19080681 has 16 divisors (see below), whose sum is σ = 27120384. Its totient is φ = 11890944.

The previous prime is 19080679. The next prime is 19080683. The reversal of 19080681 is 18608091.

It is an interprime number because it is at equal distance from previous prime (19080679) and next prime (19080683).

It is not a de Polignac number, because 19080681 - 2¹ = 19080679 is a prime.

It is a super-2 number, since 2×19080681² = 728144774847522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19080683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6816 + ... + 9198.

It is an arithmetic number, because the mean of its divisors is an integer number (1695024).

Almost surely, 2^19080681 is an apocalyptic number.

It is an amenable number.

19080681 is a deficient number, since it is larger than the sum of its proper divisors (8039703).

19080681 is a wasteful number, since it uses less digits than its factorization.

19080681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 19080681 is about 4368.1438849928. The cubic root of 19080681 is about 267.2173320611.

The spelling of 19080681 in words is "nineteen million, eighty thousand, six hundred eighty-one".