2150518 has 4 divisors (see below), whose sum is σ = 3225780. Its totient is φ = 1075258.

The previous prime is 2150513. The next prime is 2150527. The reversal of 2150518 is 8150512.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537628 + ... + 537631.

It is an arithmetic number, because the mean of its divisors is an integer number (806445).

2^2150518 is an apocalyptic number.

2150518 is a deficient number, since it is larger than the sum of its proper divisors (1075262).

2150518 is a wasteful number, since it uses less digits than its factorization.

2150518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075261.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 2150518 is about 1466.4644557575. The cubic root of 2150518 is about 129.0766525587.

The spelling of 2150518 in words is "two million, one hundred fifty thousand, five hundred eighteen".