19056049 has 4 divisors (see below), whose sum is σ = 19182400. Its totient is φ = 18929700.

The previous prime is 19056047. The next prime is 19056061. The reversal of 19056049 is 94065091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94065091 = 107 ⋅879113.

It is a cyclic number.

It is not a de Polignac number, because 19056049 - 2¹ = 19056047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19056047) 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 in 3 ways as a sum of consecutive naturals, for example, 62949 + ... + 63250.

It is an arithmetic number, because the mean of its divisors is an integer number (4795600).

Almost surely, 2^19056049 is an apocalyptic number.

It is an amenable number.

19056049 is a deficient number, since it is larger than the sum of its proper divisors (126351).

19056049 is a wasteful number, since it uses less digits than its factorization.

19056049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126350.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 19056049 is about 4365.3234702597. The cubic root of 19056049 is about 267.1022954312.

The spelling of 19056049 in words is "nineteen million, fifty-six thousand, forty-nine".