1333641 has 4 divisors (see below), whose sum is σ = 1778192. Its totient is φ = 889092.

The previous prime is 1333621. The next prime is 1333649. The reversal of 1333641 is 1463331.

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 not a de Polignac number, because 1333641 - 2¹³ = 1325449 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1333649) 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, 222271 + ... + 222276.

It is an arithmetic number, because the mean of its divisors is an integer number (444548).

2^1333641 is an apocalyptic number.

It is an amenable number.

1333641 is a deficient number, since it is larger than the sum of its proper divisors (444551).

1333641 is an equidigital number, since it uses as much as digits as its factorization.

1333641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444550.

The product of its digits is 648, while the sum is 21.

The square root of 1333641 is about 1154.8337542694. The cubic root of 1333641 is about 110.0727067533.

Adding to 1333641 its reverse (1463331), we get a palindrome (2796972).

The spelling of 1333641 in words is "one million, three hundred thirty-three thousand, six hundred forty-one".