19312069 has 8 divisors (see below), whose sum is σ = 22098368. Its totient is φ = 16532640.

The previous prime is 19312067. The next prime is 19312079. The reversal of 19312069 is 96021391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19312069 - 2¹ = 19312067 is a prime.

It is a super-2 number, since 2×19312069² = 745912018121522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19312069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19312063) 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 7 ways as a sum of consecutive naturals, for example, 7969 + ... + 10105.

It is an arithmetic number, because the mean of its divisors is an integer number (2762296).

Almost surely, 2^19312069 is an apocalyptic number.

It is an amenable number.

19312069 is a deficient number, since it is larger than the sum of its proper divisors (2786299).

19312069 is a wasteful number, since it uses less digits than its factorization.

19312069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 19312069 is about 4394.5499200715. The cubic root of 19312069 is about 268.2931604876.

The spelling of 19312069 in words is "nineteen million, three hundred twelve thousand, sixty-nine".