1845122 has 4 divisors (see below), whose sum is σ = 2767686. Its totient is φ = 922560.

The previous prime is 1845119. The next prime is 1845133. The reversal of 1845122 is 2215481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2215481 = 149 ⋅14869.

It can be written as a sum of positive squares in only one way, i.e., 982081 + 863041 = 991^2 + 929^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461279 + ... + 461282.

2^1845122 is an apocalyptic number.

1845122 is a deficient number, since it is larger than the sum of its proper divisors (922564).

1845122 is an equidigital number, since it uses as much as digits as its factorization.

1845122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922563.

The product of its digits is 640, while the sum is 23.

The square root of 1845122 is about 1358.3526787988. The cubic root of 1845122 is about 122.6521114714.

The spelling of 1845122 in words is "one million, eight hundred forty-five thousand, one hundred twenty-two".