19147069 has 2 divisors, whose sum is σ = 19147070. Its totient is φ = 19147068.

The previous prime is 19147027. The next prime is 19147099. The reversal of 19147069 is 96074191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14364100 + 4782969 = 3790^2 + 2187^2 .

It is a cyclic number.

It is not a de Polignac number, because 19147069 - 2¹³ = 19138877 is a prime.

It is a super-2 number, since 2×19147069² = 733220502581522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19147099) 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, 9573534 + 9573535.

It is an arithmetic number, because the mean of its divisors is an integer number (9573535).

Almost surely, 2^19147069 is an apocalyptic number.

It is an amenable number.

19147069 is a deficient number, since it is larger than the sum of its proper divisors (1).

19147069 is an equidigital number, since it uses as much as digits as its factorization.

19147069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 19147069 is about 4375.7363951682. The cubic root of 19147069 is about 267.5268858178.

The spelling of 19147069 in words is "nineteen million, one hundred forty-seven thousand, sixty-nine".