19085953 has 2 divisors, whose sum is σ = 19085954. Its totient is φ = 19085952.

The previous prime is 19085909. The next prime is 19085959. The reversal of 19085953 is 35958091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 7573504 = 3393^2 + 2752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19085953 is a prime.

It is not a weakly prime, because it can be changed into another prime (19085959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9542976 + 9542977.

It is an arithmetic number, because the mean of its divisors is an integer number (9542977).

Almost surely, 2^19085953 is an apocalyptic number.

It is an amenable number.

19085953 is a deficient number, since it is larger than the sum of its proper divisors (1).

19085953 is an equidigital number, since it uses as much as digits as its factorization.

19085953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 19085953 is about 4368.7473032896. The cubic root of 19085953 is about 267.2419405477.

The spelling of 19085953 in words is "nineteen million, eighty-five thousand, nine hundred fifty-three".