2135646 has 20 divisors (see below), whose sum is σ = 4785792. Its totient is φ = 711828.

The previous prime is 2135641. The next prime is 2135663. The reversal of 2135646 is 6465312.

2135646 is a `hidden beast` number, since 2 + 13 + 5 + 646 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135641) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6430 + ... + 6753.

2^2135646 is an apocalyptic number.

2135646 is an abundant number, since it is smaller than the sum of its proper divisors (2650146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135646 is a wasteful number, since it uses less digits than its factorization.

2135646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13197 (or 13188 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2135646 is about 1461.3849595504. The cubic root of 2135646 is about 128.7784189631.

The spelling of 2135646 in words is "two million, one hundred thirty-five thousand, six hundred forty-six".