2261164 has 12 divisors (see below), whose sum is σ = 3969000. Its totient is φ = 1127168.

The previous prime is 2261143. The next prime is 2261173. The reversal of 2261164 is 4611622.

It is a super-2 number, since 2×2261164² = 10225725269792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (330750).

2^2261164 is an apocalyptic number.

It is an amenable number.

2261164 is a deficient number, since it is larger than the sum of its proper divisors (1707836).

2261164 is a wasteful number, since it uses less digits than its factorization.

2261164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1710 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 2261164 is about 1503.7167286427. The cubic root of 2261164 is about 131.2534378540.

Adding to 2261164 its reverse (4611622), we get a palindrome (6872786).

The spelling of 2261164 in words is "two million, two hundred sixty-one thousand, one hundred sixty-four".