2145150 has 96 divisors (see below), whose sum is σ = 6785280. Its totient is φ = 488160.

The previous prime is 2145137. The next prime is 2145151. The reversal of 2145150 is 515412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9337 + ... + 9563.

It is an arithmetic number, because the mean of its divisors is an integer number (70680).

2^2145150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3392640).

2145150 is an abundant number, since it is smaller than the sum of its proper divisors (4640130).

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

2145150 is a wasteful number, since it uses less digits than its factorization.

2145150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2145150 is about 1464.6330598481. The cubic root of 2145150 is about 128.9691651558.

The spelling of 2145150 in words is "two million, one hundred forty-five thousand, one hundred fifty".