2150231 has 6 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 2113716.

The previous prime is 2150227. The next prime is 2150273. The reversal of 2150231 is 1320512.

It is a happy number.

It is not a de Polignac number, because 2150231 - 2² = 2150227 is a prime.

It is a super-2 number, since 2×2150231² = 9246986706722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4250 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

2^2150231 is an apocalyptic number.

2150231 is a deficient number, since it is larger than the sum of its proper divisors (37129).

2150231 is an frugal number, since it uses more digits than its factorization.

2150231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2150231 is about 1466.3665980920. The cubic root of 2150231 is about 129.0709102759.

Adding to 2150231 its reverse (1320512), we get a palindrome (3470743).

The spelling of 2150231 in words is "two million, one hundred fifty thousand, two hundred thirty-one".