1822101 has 8 divisors (see below), whose sum is σ = 2436384. Its totient is φ = 1211280.

The previous prime is 1822091. The next prime is 1822109. The reversal of 1822101 is 1012281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1822101 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 855 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (304548).

2^1822101 is an apocalyptic number.

It is an amenable number.

1822101 is a deficient number, since it is larger than the sum of its proper divisors (614283).

1822101 is a wasteful number, since it uses less digits than its factorization.

1822101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1822101 is about 1349.8522141331. The cubic root of 1822101 is about 122.1398780828.

Adding to 1822101 its reverse (1012281), we get a palindrome (2834382).

The spelling of 1822101 in words is "one million, eight hundred twenty-two thousand, one hundred one".