19122010 has 16 divisors (see below), whose sum is σ = 34523496. Its totient is φ = 7625728.

The previous prime is 19121987. The next prime is 19122013. The reversal of 19122010 is 1022191.

It can be written as a sum of positive squares in 4 ways, for example, as 10067929 + 9054081 = 3173^2 + 3009^2 .

It is not an unprimeable number, because it can be changed into a prime (19122013) 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, 822 + ... + 6238.

Almost surely, 2^19122010 is an apocalyptic number.

19122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19122010 is a deficient number, since it is larger than the sum of its proper divisors (15401486).

19122010 is a wasteful number, since it uses less digits than its factorization.

19122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 19122010 is about 4372.8720539252. The cubic root of 19122010 is about 267.4101249880.

It can be divided in two parts, 191 and 22010, that added together give a square (22201 = 149²).

The spelling of 19122010 in words is "nineteen million, one hundred twenty-two thousand, ten".