19085959 has 2 divisors, whose sum is σ = 19085960. Its totient is φ = 19085958.

The previous prime is 19085953. The next prime is 19085977. The reversal of 19085959 is 95958091.

It is a weak prime.

It is an emirp because it is prime and its reverse (95958091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19085959 - 2⁷ = 19085831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19085953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9542979 + 9542980.

It is an arithmetic number, because the mean of its divisors is an integer number (9542980).

Almost surely, 2^19085959 is an apocalyptic number.

19085959 is a deficient number, since it is larger than the sum of its proper divisors (1).

19085959 is an equidigital number, since it uses as much as digits as its factorization.

19085959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 19085959 is about 4368.7479899852. The cubic root of 19085959 is about 267.2419685518.

The spelling of 19085959 in words is "nineteen million, eighty-five thousand, nine hundred fifty-nine".