1641173 has 4 divisors (see below), whose sum is σ = 1653120. Its totient is φ = 1629228.

The previous prime is 1641161. The next prime is 1641217. The reversal of 1641173 is 3711461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3711461 = 13 ⋅285497.

It is a cyclic number.

It is not a de Polignac number, because 1641173 - 2¹⁸ = 1379029 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 (1641103) 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, 5765 + ... + 6042.

It is an arithmetic number, because the mean of its divisors is an integer number (413280).

2^1641173 is an apocalyptic number.

It is an amenable number.

1641173 is a deficient number, since it is larger than the sum of its proper divisors (11947).

1641173 is a wasteful number, since it uses less digits than its factorization.

1641173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11946.

The product of its digits is 504, while the sum is 23.

The square root of 1641173 is about 1281.0827451808. The cubic root of 1641173 is about 117.9554797099.

The spelling of 1641173 in words is "one million, six hundred forty-one thousand, one hundred seventy-three".