19000853 has 2 divisors, whose sum is σ = 19000854. Its totient is φ = 19000852.

The previous prime is 19000823. The next prime is 19000859. The reversal of 19000853 is 35800091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15225604 + 3775249 = 3902^2 + 1943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19000853 is a prime.

It is a super-2 number, since 2×19000853² = 722064829455218, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19000859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9500426 + 9500427.

It is an arithmetic number, because the mean of its divisors is an integer number (9500427).

Almost surely, 2^19000853 is an apocalyptic number.

It is an amenable number.

19000853 is a deficient number, since it is larger than the sum of its proper divisors (1).

19000853 is an equidigital number, since it uses as much as digits as its factorization.

19000853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 19000853 is about 4358.9967882530. The cubic root of 19000853 is about 266.8441580521.

The spelling of 19000853 in words is "nineteen million, eight hundred fifty-three", and thus it is an aban number.