19121064 has 16 divisors (see below), whose sum is σ = 47802720. Its totient is φ = 6373680.

The previous prime is 19121051. The next prime is 19121071. The reversal of 19121064 is 46012191.

It is a super-3 number, since 3×19121064³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 796711 = 19121064 / (1 + 9 + 1 + 2 + 1 + 0 + 6 + 4).

It is an unprimeable number.

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, 398332 + ... + 398379.

It is an arithmetic number, because the mean of its divisors is an integer number (2987670).

Almost surely, 2^19121064 is an apocalyptic number.

It is an amenable number.

19121064 is an abundant number, since it is smaller than the sum of its proper divisors (28681656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19121064 is a wasteful number, since it uses less digits than its factorization.

19121064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796720 (or 796716 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 19121064 is about 4372.7638856906. The cubic root of 19121064 is about 267.4057151631.

The spelling of 19121064 in words is "nineteen million, one hundred twenty-one thousand, sixty-four".