6231491 has 8 divisors (see below), whose sum is σ = 7367520. Its totient is φ = 5156928.

The previous prime is 6231481. The next prime is 6231493. The reversal of 6231491 is 1941326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6231491 - 2⁶ = 6231427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6231491.

It is not an unprimeable number, because it can be changed into a prime (6231493) 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 7 ways as a sum of consecutive naturals, for example, 15146 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (920940).

Almost surely, 2^6231491 is an apocalyptic number.

6231491 is a deficient number, since it is larger than the sum of its proper divisors (1136029).

6231491 is a wasteful number, since it uses less digits than its factorization.

6231491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30733.

The product of its digits is 1296, while the sum is 26.

The square root of 6231491 is about 2496.2954552697. The cubic root of 6231491 is about 184.0195611686.

The spelling of 6231491 in words is "six million, two hundred thirty-one thousand, four hundred ninety-one".