6231431 has 4 divisors (see below), whose sum is σ = 6376392. Its totient is φ = 6086472.

The previous prime is 6231427. The next prime is 6231437. The reversal of 6231431 is 1341326.

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 6231431 - 2² = 6231427 is a prime.

It is a super-2 number, since 2×6231431² = 77661464615522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6231437) 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 3 ways as a sum of consecutive naturals, for example, 72416 + ... + 72501.

It is an arithmetic number, because the mean of its divisors is an integer number (1594098).

Almost surely, 2^6231431 is an apocalyptic number.

6231431 is a deficient number, since it is larger than the sum of its proper divisors (144961).

6231431 is a wasteful number, since it uses less digits than its factorization.

6231431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144960.

The product of its digits is 432, while the sum is 20.

The square root of 6231431 is about 2496.2834374325. The cubic root of 6231431 is about 184.0189705551.

Adding to 6231431 its reverse (1341326), we get a palindrome (7572757).

The spelling of 6231431 in words is "six million, two hundred thirty-one thousand, four hundred thirty-one".