1641031 has 8 divisors (see below), whose sum is σ = 1904000. Its totient is φ = 1385208.

The previous prime is 1641007. The next prime is 1641043. The reversal of 1641031 is 1301461.

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

It is a cyclic number.

It is not a de Polignac number, because 1641031 - 2⁹ = 1640519 is a prime.

It is a super-2 number, since 2×1641031² = 5385965485922, which contains 22 as substring.

1641031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1640996 and 1641014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641091) 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, 1281 + ... + 2218.

It is an arithmetic number, because the mean of its divisors is an integer number (238000).

2^1641031 is an apocalyptic number.

1641031 is a deficient number, since it is larger than the sum of its proper divisors (262969).

1641031 is an equidigital number, since it uses as much as digits as its factorization.

1641031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1641031 is about 1281.0273221130. The cubic root of 1641031 is about 117.9520776389.

Adding to 1641031 its reverse (1301461), we get a palindrome (2942492).

The spelling of 1641031 in words is "one million, six hundred forty-one thousand, thirty-one".