2261173 has 2 divisors, whose sum is σ = 2261174. Its totient is φ = 2261172.

The previous prime is 2261143. The next prime is 2261177. The reversal of 2261173 is 3711622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2241009 + 20164 = 1497^2 + 142^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261173 - 2¹⁷ = 2130101 is a prime.

It is a super-2 number, since 2×2261173² = 10225806671858, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130586 + 1130587.

It is an arithmetic number, because the mean of its divisors is an integer number (1130587).

2^2261173 is an apocalyptic number.

It is an amenable number.

2261173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261173 is an equidigital number, since it uses as much as digits as its factorization.

2261173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 22.

The square root of 2261173 is about 1503.7197212247. The cubic root of 2261173 is about 131.2536119943.

Adding to 2261173 its reverse (3711622), we get a palindrome (5972795).

The spelling of 2261173 in words is "two million, two hundred sixty-one thousand, one hundred seventy-three".