1821052 has 6 divisors (see below), whose sum is σ = 3186848. Its totient is φ = 910524.

The previous prime is 1821037. The next prime is 1821067. The reversal of 1821052 is 2501281.

It is an interprime number because it is at equal distance from previous prime (1821037) and next prime (1821067).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 227628 + ... + 227635.

2^1821052 is an apocalyptic number.

It is an amenable number.

1821052 is a deficient number, since it is larger than the sum of its proper divisors (1365796).

1821052 is a wasteful number, since it uses less digits than its factorization.

1821052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455267 (or 455265 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1821052 is about 1349.4635971378. The cubic root of 1821052 is about 122.1164345731.

The spelling of 1821052 in words is "one million, eight hundred twenty-one thousand, fifty-two".