19080997 has 16 divisors (see below), whose sum is σ = 21972160. Its totient is φ = 16422912.

The previous prime is 19080991. The next prime is 19081003. The reversal of 19080997 is 79908091.

It is an interprime number because it is at equal distance from previous prime (19080991) and next prime (19081003).

It is a 6-Lehmer number, since φ(19080997) divides (19080997-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 19080997 - 2¹¹ = 19078949 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 (19080991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15973 + ... + 17125.

It is an arithmetic number, because the mean of its divisors is an integer number (1373260).

Almost surely, 2^19080997 is an apocalyptic number.

It is an amenable number.

19080997 is a deficient number, since it is larger than the sum of its proper divisors (2891163).

19080997 is a wasteful number, since it uses less digits than its factorization.

19080997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 19080997 is about 4368.1800558127. The cubic root of 19080997 is about 267.2188072044.

The spelling of 19080997 in words is "nineteen million, eighty thousand, nine hundred ninety-seven".