1852121 has 4 divisors (see below), whose sum is σ = 1932672. Its totient is φ = 1771572.

The previous prime is 1852111. The next prime is 1852153. The reversal of 1852121 is 1212581.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1212581 = 251 ⋅4831.

It is a cyclic number.

It is not a de Polignac number, because 1852121 - 2⁶ = 1852057 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1852093 and 1852102.

It is not an unprimeable number, because it can be changed into a prime (1852111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40241 + ... + 40286.

It is an arithmetic number, because the mean of its divisors is an integer number (483168).

2^1852121 is an apocalyptic number.

It is an amenable number.

1852121 is a deficient number, since it is larger than the sum of its proper divisors (80551).

1852121 is an equidigital number, since it uses as much as digits as its factorization.

1852121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80550.

The product of its digits is 160, while the sum is 20.

The square root of 1852121 is about 1360.9265226308. The cubic root of 1852121 is about 122.8069989680.

The spelling of 1852121 in words is "one million, eight hundred fifty-two thousand, one hundred twenty-one".