2150571 has 4 divisors (see below), whose sum is σ = 2867432. Its totient is φ = 1433712.

The previous prime is 2150567. The next prime is 2150597. The reversal of 2150571 is 1750512.

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

It is not a de Polignac number, because 2150571 - 2² = 2150567 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358426 + ... + 358431.

It is an arithmetic number, because the mean of its divisors is an integer number (716858).

2^2150571 is an apocalyptic number.

2150571 is a deficient number, since it is larger than the sum of its proper divisors (716861).

2150571 is an equidigital number, since it uses as much as digits as its factorization.

2150571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716860.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 2150571 is about 1466.4825263194. The cubic root of 2150571 is about 129.0777129243.

The spelling of 2150571 in words is "two million, one hundred fifty thousand, five hundred seventy-one".