231427 has 6 divisors (see below), whose sum is σ = 269268. Its totient is φ = 198324.

The previous prime is 231419. The next prime is 231431. The reversal of 231427 is 724132.

It is not a de Polignac number, because 231427 - 2³ = 231419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231827) 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, 2313 + ... + 2410.

It is an arithmetic number, because the mean of its divisors is an integer number (44878).

2²³¹⁴²⁷ is an apocalyptic number.

231427 is a deficient number, since it is larger than the sum of its proper divisors (37841).

231427 is an equidigital number, since it uses as much as digits as its factorization.

231427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737 (or 4730 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 231427 is about 481.0686021764. The cubic root of 231427 is about 61.3957075235.

Adding to 231427 its reverse (724132), we get a palindrome (955559).

The spelling of 231427 in words is "two hundred thirty-one thousand, four hundred twenty-seven".