1003261 has 8 divisors (see below), whose sum is σ = 1152704. Its totient is φ = 855360.

The previous prime is 1003259. The next prime is 1003273. The reversal of 1003261 is 1623001.

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 1003261 - 2¹ = 1003259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003201) 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, 2101 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (144088).

2^1003261 is an apocalyptic number.

It is an amenable number.

1003261 is a deficient number, since it is larger than the sum of its proper divisors (149443).

1003261 is an equidigital number, since it uses as much as digits as its factorization.

1003261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1003261 is about 1001.6291728978. The cubic root of 1003261 is about 100.1085820567.

Adding to 1003261 its reverse (1623001), we get a palindrome (2626262).

The spelling of 1003261 in words is "one million, three thousand, two hundred sixty-one".