2155026 has 8 divisors (see below), whose sum is σ = 4310064. Its totient is φ = 718340.

The previous prime is 2155009. The next prime is 2155057. The reversal of 2155026 is 6205512.

It is a sphenic number, since it is the product of 3 distinct primes.

2155026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2154993 and 2155011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179580 + ... + 179591.

It is an arithmetic number, because the mean of its divisors is an integer number (538758).

2^2155026 is an apocalyptic number.

2155026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2155026 is a wasteful number, since it uses less digits than its factorization.

2155026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359176.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2155026 is about 1468.0006811988. Note that the first 3 decimals coincide. The cubic root of 2155026 is about 129.1667814544.

The spelling of 2155026 in words is "two million, one hundred fifty-five thousand, twenty-six".