2155068 has 18 divisors (see below), whose sum is σ = 5447624. Its totient is φ = 718344.

The previous prime is 2155067. The next prime is 2155079. The reversal of 2155068 is 8605512.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29896 + ... + 29967.

2^2155068 is an apocalyptic number.

It is an amenable number.

2155068 is an abundant number, since it is smaller than the sum of its proper divisors (3292556).

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

2155068 is a wasteful number, since it uses less digits than its factorization.

2155068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59873 (or 59868 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2155068 is about 1468.0149862995. The cubic root of 2155068 is about 129.1676205734.

The spelling of 2155068 in words is "two million, one hundred fifty-five thousand, sixty-eight".