19316485 has 4 divisors (see below), whose sum is σ = 23179788. Its totient is φ = 15453184.

The previous prime is 19316477. The next prime is 19316489. The reversal of 19316485 is 58461391.

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 11737476 + 7579009 = 3426^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 19316485 - 2³ = 19316477 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 (19316489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931644 + ... + 1931653.

It is an arithmetic number, because the mean of its divisors is an integer number (5794947).

Almost surely, 2^19316485 is an apocalyptic number.

It is an amenable number.

19316485 is a deficient number, since it is larger than the sum of its proper divisors (3863303).

19316485 is an equidigital number, since it uses as much as digits as its factorization.

19316485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863302.

The product of its digits is 25920, while the sum is 37.

The square root of 19316485 is about 4395.0523318841. The cubic root of 19316485 is about 268.3136087075.

The spelling of 19316485 in words is "nineteen million, three hundred sixteen thousand, four hundred eighty-five".