1003261163 has 4 divisors (see below), whose sum is σ = 1003324608. Its totient is φ = 1003197720.

The previous prime is 1003261151. The next prime is 1003261229. The reversal of 1003261163 is 3611623001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003261163 is a prime.

It is a super-2 number, since 2×1003261163² = 2013065922368225138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003261663) 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, 13253 + ... + 46713.

It is an arithmetic number, because the mean of its divisors is an integer number (250831152).

Almost surely, 2^1003261163 is an apocalyptic number.

1003261163 is a deficient number, since it is larger than the sum of its proper divisors (63445).

1003261163 is an equidigital number, since it uses as much as digits as its factorization.

1003261163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63444.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1003261163 is about 31674.2981453418. The cubic root of 1003261163 is about 1001.0858747825.

Adding to 1003261163 its reverse (3611623001), we get a palindrome (4614884164).

The spelling of 1003261163 in words is "one billion, three million, two hundred sixty-one thousand, one hundred sixty-three".