231025 has 6 divisors (see below), whose sum is σ = 286502. Its totient is φ = 184800.

The previous prime is 231019. The next prime is 231031. The reversal of 231025 is 520132.

231025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231019) and next prime (231031).

It can be written as a sum of positive squares in 3 ways, for example, as 71824 + 159201 = 268^2 + 399^2 .

It is not a de Polignac number, because 231025 - 2³ = 231017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230996 and 231014.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4596 + ... + 4645.

2²³¹⁰²⁵ is an apocalyptic number.

231025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231025 is a deficient number, since it is larger than the sum of its proper divisors (55477).

231025 is an equidigital number, since it uses as much as digits as its factorization.

231025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9251 (or 9246 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 231025 is about 480.6506007486. The cubic root of 231025 is about 61.3601378061.

Adding to 231025 its reverse (520132), we get a palindrome (751157).

The spelling of 231025 in words is "two hundred thirty-one thousand, twenty-five".