1920106 has 4 divisors (see below), whose sum is σ = 2880162. Its totient is φ = 960052.

The previous prime is 1920101. The next prime is 1920143. The reversal of 1920106 is 6010291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1265625 + 654481 = 1125^2 + 809^2 .

It is not an unprimeable number, because it can be changed into a prime (1920101) 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 as a sum of consecutive naturals, namely, 480025 + ... + 480028.

2^1920106 is an apocalyptic number.

1920106 is a deficient number, since it is larger than the sum of its proper divisors (960056).

1920106 is an equidigital number, since it uses as much as digits as its factorization.

1920106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960055.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1920106 is about 1385.6788949825. The cubic root of 1920106 is about 124.2915874644.

Adding to 1920106 its reverse (6010291), we get a palindrome (7930397).

The spelling of 1920106 in words is "one million, nine hundred twenty thousand, one hundred six".