2261003 has 4 divisors (see below), whose sum is σ = 2288328. Its totient is φ = 2233680.

The previous prime is 2260967. The next prime is 2261009. The reversal of 2261003 is 3001622.

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

It is a cyclic number.

It is not a de Polignac number, because 2261003 - 2¹⁶ = 2195467 is a prime.

It is a super-2 number, since 2×2261003² = 10224269132018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261009) 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, 13538 + ... + 13703.

It is an arithmetic number, because the mean of its divisors is an integer number (572082).

2^2261003 is an apocalyptic number.

2261003 is a deficient number, since it is larger than the sum of its proper divisors (27325).

2261003 is an equidigital number, since it uses as much as digits as its factorization.

2261003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27324.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2261003 is about 1503.6631936707. The cubic root of 2261003 is about 131.2503225994.

Adding to 2261003 its reverse (3001622), we get a palindrome (5262625).

The spelling of 2261003 in words is "two million, two hundred sixty-one thousand, three".