1210641 has 4 divisors (see below), whose sum is σ = 1614192. Its totient is φ = 807092.

The previous prime is 1210639. The next prime is 1210711. The reversal of 1210641 is 1460121.

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.

It is a cyclic number.

It is not a de Polignac number, because 1210641 - 2¹ = 1210639 is a prime.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210641.

It is not an unprimeable number, because it can be changed into a prime (1210631) 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, 201771 + ... + 201776.

It is an arithmetic number, because the mean of its divisors is an integer number (403548).

2^1210641 is an apocalyptic number.

It is an amenable number.

1210641 is a deficient number, since it is larger than the sum of its proper divisors (403551).

1210641 is an equidigital number, since it uses as much as digits as its factorization.

1210641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403550.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1210641 is about 1100.2913250590. The cubic root of 1210641 is about 106.5790371878.

Adding to 1210641 its reverse (1460121), we get a palindrome (2670762).

The spelling of 1210641 in words is "one million, two hundred ten thousand, six hundred forty-one".