1641106 has 12 divisors (see below), whose sum is σ = 2599182. Its totient is φ = 777024.

The previous prime is 1641103. The next prime is 1641131. The reversal of 1641106 is 6011461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 549081 = 1045^2 + 741^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1641103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415 + ... + 1858.

2^1641106 is an apocalyptic number.

1641106 is a deficient number, since it is larger than the sum of its proper divisors (958076).

1641106 is a wasteful number, since it uses less digits than its factorization.

1641106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1641106 is about 1281.0565951589. The cubic root of 1641106 is about 117.9538745318.

Adding to 1641106 its reverse (6011461), we get a palindrome (7652567).

The spelling of 1641106 in words is "one million, six hundred forty-one thousand, one hundred six".