5981231 has 4 divisors (see below), whose sum is σ = 5989200. Its totient is φ = 5973264.

The previous prime is 5981207. The next prime is 5981237. The reversal of 5981231 is 1321895.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5981231 - 2⁶ = 5981167 is a prime.

It is a super-2 number, since 2×5981231² = 71550248550722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5981194 and 5981203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5981237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2726 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (1497300).

Almost surely, 2^5981231 is an apocalyptic number.

5981231 is a deficient number, since it is larger than the sum of its proper divisors (7969).

5981231 is an equidigital number, since it uses as much as digits as its factorization.

5981231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968.

The product of its digits is 2160, while the sum is 29.

The square root of 5981231 is about 2445.6555358431. The cubic root of 5981231 is about 181.5223861669.

The spelling of 5981231 in words is "five million, nine hundred eighty-one thousand, two hundred thirty-one".