1641164 has 12 divisors (see below), whose sum is σ = 3282384. Its totient is φ = 703344.

The previous prime is 1641161. The next prime is 1641217. The reversal of 1641164 is 4611461.

1641164 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29279 + ... + 29334.

It is an arithmetic number, because the mean of its divisors is an integer number (273532).

2^1641164 is an apocalyptic number.

1641164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1641164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1641164 is a wasteful number, since it uses less digits than its factorization.

1641164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58624 (or 58622 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1641164 is about 1281.0792325223. The cubic root of 1641164 is about 117.9552640915.

The spelling of 1641164 in words is "one million, six hundred forty-one thousand, one hundred sixty-four".