2165486 has 4 divisors (see below), whose sum is σ = 3248232. Its totient is φ = 1082742.

The previous prime is 2165483. The next prime is 2165521. The reversal of 2165486 is 6845612.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541370 + ... + 541373.

It is an arithmetic number, because the mean of its divisors is an integer number (812058).

2^2165486 is an apocalyptic number.

2165486 is a deficient number, since it is larger than the sum of its proper divisors (1082746).

2165486 is a wasteful number, since it uses less digits than its factorization.

2165486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082745.

The product of its digits is 11520, while the sum is 32.

The square root of 2165486 is about 1471.5590372119. The cubic root of 2165486 is about 129.3754261851.

The spelling of 2165486 in words is "two million, one hundred sixty-five thousand, four hundred eighty-six".