2166524 has 6 divisors (see below), whose sum is σ = 3791424. Its totient is φ = 1083260.

The previous prime is 2166523. The next prime is 2166529. The reversal of 2166524 is 4256612.

2166524 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2166493 and 2166502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270812 + ... + 270819.

It is an arithmetic number, because the mean of its divisors is an integer number (631904).

2^2166524 is an apocalyptic number.

It is an amenable number.

2166524 is a deficient number, since it is larger than the sum of its proper divisors (1624900).

2166524 is a wasteful number, since it uses less digits than its factorization.

2166524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541635 (or 541633 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2166524 is about 1471.9116821331. The cubic root of 2166524 is about 129.3960944079.

The spelling of 2166524 in words is "two million, one hundred sixty-six thousand, five hundred twenty-four".