2166562 has 8 divisors (see below), whose sum is σ = 3256092. Its totient is φ = 1081200.

The previous prime is 2166557. The next prime is 2166581. The reversal of 2166562 is 2656612.

It can be written as a sum of positive squares in 2 ways, for example, as 2134521 + 32041 = 1461^2 + 179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2166562.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512 + ... + 2572.

2^2166562 is an apocalyptic number.

2166562 is a deficient number, since it is larger than the sum of its proper divisors (1089530).

2166562 is a wasteful number, since it uses less digits than its factorization.

2166562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084.

The product of its digits is 4320, while the sum is 28.

The square root of 2166562 is about 1471.9245904597. The cubic root of 2166562 is about 129.3968509227.

The spelling of 2166562 in words is "two million, one hundred sixty-six thousand, five hundred sixty-two".