1922545 has 4 divisors (see below), whose sum is σ = 2307060. Its totient is φ = 1538032.

The previous prime is 1922533. The next prime is 1922551. The reversal of 1922545 is 5452291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 314721 + 1607824 = 561^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1922545 - 2¹¹ = 1920497 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 192250 + ... + 192259.

It is an arithmetic number, because the mean of its divisors is an integer number (576765).

2^1922545 is an apocalyptic number.

It is an amenable number.

1922545 is a deficient number, since it is larger than the sum of its proper divisors (384515).

1922545 is an equidigital number, since it uses as much as digits as its factorization.

1922545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384514.

The product of its digits is 3600, while the sum is 28.

The square root of 1922545 is about 1386.5586897063. The cubic root of 1922545 is about 124.3441920108.

The spelling of 1922545 in words is "one million, nine hundred twenty-two thousand, five hundred forty-five".