1888161 has 16 divisors (see below), whose sum is σ = 2842560. Its totient is φ = 1104320.

The previous prime is 1888157. The next prime is 1888169. The reversal of 1888161 is 1618881.

It is not a de Polignac number, because 1888161 - 2² = 1888157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1888169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (177660).

2^1888161 is an apocalyptic number.

1888161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1888161 is a deficient number, since it is larger than the sum of its proper divisors (954399).

1888161 is a wasteful number, since it uses less digits than its factorization.

1888161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016.

The product of its digits is 3072, while the sum is 33.

The square root of 1888161 is about 1374.1037078765. The cubic root of 1888161 is about 123.5984452209.

The spelling of 1888161 in words is "one million, eight hundred eighty-eight thousand, one hundred sixty-one".