2164526 has 24 divisors (see below), whose sum is σ = 4069800. Its totient is φ = 855792.

The previous prime is 2164511. The next prime is 2164529. The reversal of 2164526 is 6254612.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2164495 and 2164504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (169575).

2^2164526 is an apocalyptic number.

2164526 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2164526 is a deficient number, since it is larger than the sum of its proper divisors (1905274).

2164526 is a wasteful number, since it uses less digits than its factorization.

2164526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 1721 counting only the distinct ones).

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

The square root of 2164526 is about 1471.2328163822. The cubic root of 2164526 is about 129.3563051861.

The spelling of 2164526 in words is "two million, one hundred sixty-four thousand, five hundred twenty-six".