2135966 has 16 divisors (see below), whose sum is σ = 3788640. Its totient is φ = 883680.

The previous prime is 2135957. The next prime is 2135971. The reversal of 2135966 is 6695312.

2135966 = 74² + 75² + ... + 189².

It is a happy number.

2135966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2225 + ... + 3036.

It is an arithmetic number, because the mean of its divisors is an integer number (236790).

2^2135966 is an apocalyptic number.

2135966 is a deficient number, since it is larger than the sum of its proper divisors (1652674).

2135966 is a wasteful number, since it uses less digits than its factorization.

2135966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299.

The product of its digits is 9720, while the sum is 32.

The square root of 2135966 is about 1461.4944406326. The cubic root of 2135966 is about 128.7848505902.

The spelling of 2135966 in words is "two million, one hundred thirty-five thousand, nine hundred sixty-six".