1308231 has 20 divisors (see below), whose sum is σ = 2021184. Its totient is φ = 842400.

The previous prime is 1308221. The next prime is 1308247. The reversal of 1308231 is 1328031.

It is not a de Polignac number, because 1308231 - 2¹⁷ = 1177159 is a prime.

It is a super-2 number, since 2×1308231² = 3422936698722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2251 + ... + 2771.

2^1308231 is an apocalyptic number.

1308231 is a deficient number, since it is larger than the sum of its proper divisors (712953).

1308231 is an equidigital number, since it uses as much as digits as its factorization.

1308231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1308231 is about 1143.7792619208. The cubic root of 1308231 is about 109.3691437409.

The spelling of 1308231 in words is "one million, three hundred eight thousand, two hundred thirty-one".