1881101 has 12 divisors (see below), whose sum is σ = 2092512. Its totient is φ = 1687488.

The previous prime is 1881083. The next prime is 1881109. The reversal of 1881101 is 1011881.

It is not a de Polignac number, because 1881101 - 2⁶ = 1881037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6506 + ... + 6788.

It is an arithmetic number, because the mean of its divisors is an integer number (174376).

2^1881101 is an apocalyptic number.

It is an amenable number.

1881101 is a deficient number, since it is larger than the sum of its proper divisors (211411).

1881101 is a wasteful number, since it uses less digits than its factorization.

1881101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 1881101 is about 1371.5323547040. The cubic root of 1881101 is about 123.4442043360. Note that the first 3 decimals are identical.

Adding to 1881101 its reverse (1011881), we get a palindrome (2892982).

It can be divided in two parts, 1881 and 101, that multiplied together give a palindrome (189981).

The spelling of 1881101 in words is "one million, eight hundred eighty-one thousand, one hundred one".