2155248 has 50 divisors (see below), whose sum is σ = 6241664. Its totient is φ = 717984.

The previous prime is 2155207. The next prime is 2155253. The reversal of 2155248 is 8425512.

It is a happy number.

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

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 465 + ... + 2127.

2^2155248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3120832).

2155248 is an abundant number, since it is smaller than the sum of its proper divisors (4086416).

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

2155248 is a wasteful number, since it uses less digits than its factorization.

2155248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1668 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2155248 is about 1468.0762922955. The cubic root of 2155248 is about 129.1712166740.

The spelling of 2155248 in words is "two million, one hundred fifty-five thousand, two hundred forty-eight".