19052065 has 4 divisors (see below), whose sum is σ = 22862484. Its totient is φ = 15241648.

The previous prime is 19052063. The next prime is 19052093. The reversal of 19052065 is 56025091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7225344 + 11826721 = 2688^2 + 3439^2 .

It is a cyclic number.

It is not a de Polignac number, because 19052065 - 2¹ = 19052063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19052063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905202 + ... + 1905211.

It is an arithmetic number, because the mean of its divisors is an integer number (5715621).

Almost surely, 2^19052065 is an apocalyptic number.

It is an amenable number.

19052065 is a deficient number, since it is larger than the sum of its proper divisors (3810419).

19052065 is an equidigital number, since it uses as much as digits as its factorization.

19052065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810418.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 19052065 is about 4364.8671228343. The cubic root of 19052065 is about 267.0836799999.

The spelling of 19052065 in words is "nineteen million, fifty-two thousand, sixty-five".