2150538 has 32 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 651456.

The previous prime is 2150531. The next prime is 2150543. The reversal of 2150538 is 8350512.

It is not an unprimeable number, because it can be changed into a prime (2150531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5988 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (147000).

2^2150538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352000).

2150538 is an abundant number, since it is smaller than the sum of its proper divisors (2553462).

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

2150538 is a wasteful number, since it uses less digits than its factorization.

2150538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2150538 is about 1466.4712748636. The cubic root of 2150538 is about 129.0770526987.

The spelling of 2150538 in words is "two million, one hundred fifty thousand, five hundred thirty-eight".