2530231 has 8 divisors (see below), whose sum is σ = 2784528. Its totient is φ = 2299000.

The previous prime is 2530223. The next prime is 2530237. The reversal of 2530231 is 1320352.

2530231 = T₁₄₁ + T₁₄₂ + ... + T₂₆₁.

It is not a de Polignac number, because 2530231 - 2³ = 2530223 is a prime.

It is a super-2 number, since 2×2530231² = 12804137826722, which contains 22 as substring.

It is a Duffinian number.

2530231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 2281.

It is an arithmetic number, because the mean of its divisors is an integer number (348066).

2^2530231 is an apocalyptic number.

2530231 is a deficient number, since it is larger than the sum of its proper divisors (254297).

2530231 is an equidigital number, since it uses as much as digits as its factorization.

2530231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2530231 is about 1590.6699846291. The cubic root of 2530231 is about 136.2657541472.

Adding to 2530231 its reverse (1320352), we get a palindrome (3850583).

The spelling of 2530231 in words is "two million, five hundred thirty thousand, two hundred thirty-one".