19372069 has 2 divisors, whose sum is σ = 19372070. Its totient is φ = 19372068.

The previous prime is 19372063. The next prime is 19372079. The reversal of 19372069 is 96027391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18809569 + 562500 = 4337^2 + 750^2 .

It is an emirp because it is prime and its reverse (96027391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19372069 - 2¹⁵ = 19339301 is a prime.

It is a super-2 number, since 2×19372069² = 750554114681522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19372063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9686034 + 9686035.

It is an arithmetic number, because the mean of its divisors is an integer number (9686035).

Almost surely, 2^19372069 is an apocalyptic number.

It is an amenable number.

19372069 is a deficient number, since it is larger than the sum of its proper divisors (1).

19372069 is an equidigital number, since it uses as much as digits as its factorization.

19372069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 19372069 is about 4401.3712635950. The cubic root of 19372069 is about 268.5707234859.

The spelling of 19372069 in words is "nineteen million, three hundred seventy-two thousand, sixty-nine".