19122146 has 16 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 9374400.

The previous prime is 19122139. The next prime is 19122149. The reversal of 19122146 is 64122191.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19122149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43946 + ... + 44378.

It is an arithmetic number, because the mean of its divisors is an integer number (1828008).

Almost surely, 2^19122146 is an apocalyptic number.

19122146 is a deficient number, since it is larger than the sum of its proper divisors (10125982).

19122146 is a wasteful number, since it uses less digits than its factorization.

19122146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

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

The square root of 19122146 is about 4372.8876043182. The cubic root of 19122146 is about 267.4107589466.

The spelling of 19122146 in words is "nineteen million, one hundred twenty-two thousand, one hundred forty-six".