1881169 has 8 divisors (see below), whose sum is σ = 2004480. Its totient is φ = 1759296.

The previous prime is 1881163. The next prime is 1881181. The reversal of 1881169 is 9611881.

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

It is not a de Polignac number, because 1881169 - 2³ = 1881161 is a prime.

It is a super-2 number, since 2×1881169² = 7077593613122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1881161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3832 + ... + 4294.

It is an arithmetic number, because the mean of its divisors is an integer number (250560).

2^1881169 is an apocalyptic number.

It is an amenable number.

1881169 is a deficient number, since it is larger than the sum of its proper divisors (123311).

1881169 is a wasteful number, since it uses less digits than its factorization.

1881169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its digits is 3456, while the sum is 34.

The square root of 1881169 is about 1371.5571442707. The cubic root of 1881169 is about 123.4456917813.

The spelling of 1881169 in words is "one million, eight hundred eighty-one thousand, one hundred sixty-nine".