1031641 has 4 divisors (see below), whose sum is σ = 1111012. Its totient is φ = 952272.

The previous prime is 1031633. The next prime is 1031669. The reversal of 1031641 is 1461301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326041 + 705600 = 571^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031641 - 2³ = 1031633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031141) 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, 39666 + ... + 39691.

It is an arithmetic number, because the mean of its divisors is an integer number (277753).

2^1031641 is an apocalyptic number.

It is an amenable number.

1031641 is a deficient number, since it is larger than the sum of its proper divisors (79371).

1031641 is an equidigital number, since it uses as much as digits as its factorization.

1031641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79370.

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

The square root of 1031641 is about 1015.6972974267. The cubic root of 1031641 is about 101.0437675878.

Adding to 1031641 its reverse (1461301), we get a palindrome (2492942).

It can be divided in two parts, 10 and 31641, that multiplied together give a triangular number (316410 = T₇₉₅).

The spelling of 1031641 in words is "one million, thirty-one thousand, six hundred forty-one".