19468513 has 2 divisors, whose sum is σ = 19468514. Its totient is φ = 19468512.

The previous prime is 19468507. The next prime is 19468529. The reversal of 19468513 is 31586491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15108769 + 4359744 = 3887^2 + 2088^2 .

It is a cyclic number.

It is not a de Polignac number, because 19468513 - 2¹³ = 19460321 is a prime.

It is not a weakly prime, because it can be changed into another prime (19468573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9734256 + 9734257.

It is an arithmetic number, because the mean of its divisors is an integer number (9734257).

Almost surely, 2^19468513 is an apocalyptic number.

It is an amenable number.

19468513 is a deficient number, since it is larger than the sum of its proper divisors (1).

19468513 is an equidigital number, since it uses as much as digits as its factorization.

19468513 is an odious number, because the sum of its binary digits is odd.

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

The square root of 19468513 is about 4412.3137921050. The cubic root of 19468513 is about 269.0156797243.

The spelling of 19468513 in words is "nineteen million, four hundred sixty-eight thousand, five hundred thirteen".