19122105 has 16 divisors (see below), whose sum is σ = 30651264. Its totient is φ = 10179840.

The previous prime is 19122083. The next prime is 19122119. The reversal of 19122105 is 50122191.

It is not a de Polignac number, because 19122105 - 2⁹ = 19121593 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12492 + ... + 13938.

It is an arithmetic number, because the mean of its divisors is an integer number (1915704).

Almost surely, 2^19122105 is an apocalyptic number.

19122105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19122105 is a deficient number, since it is larger than the sum of its proper divisors (11529159).

19122105 is a wasteful number, since it uses less digits than its factorization.

19122105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 19122105 is about 4372.8829163379. The cubic root of 19122105 is about 267.4105678271.

Adding to 19122105 its reverse (50122191), we get a palindrome (69244296).

The spelling of 19122105 in words is "nineteen million, one hundred twenty-two thousand, one hundred five".