19104461 has 2 divisors, whose sum is σ = 19104462. Its totient is φ = 19104460.

The previous prime is 19104457. The next prime is 19104487. The reversal of 19104461 is 16440191.

It is an a-pointer prime, because the next prime (19104487) can be obtained adding 19104461 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11095561 + 8008900 = 3331^2 + 2830^2 .

It is a cyclic number.

It is not a de Polignac number, because 19104461 - 2² = 19104457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19104461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19104431) 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, 9552230 + 9552231.

It is an arithmetic number, because the mean of its divisors is an integer number (9552231).

Almost surely, 2^19104461 is an apocalyptic number.

It is an amenable number.

19104461 is a deficient number, since it is larger than the sum of its proper divisors (1).

19104461 is an equidigital number, since it uses as much as digits as its factorization.

19104461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 19104461 is about 4370.8650173621. The cubic root of 19104461 is about 267.3282957836.

The spelling of 19104461 in words is "nineteen million, one hundred four thousand, four hundred sixty-one".