31243441 has 8 divisors (see below), whose sum is σ = 31941504. Its totient is φ = 30553200.

The previous prime is 31243439. The next prime is 31243463. The reversal of 31243441 is 14434213.

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

It is a cyclic number.

It is not a de Polignac number, because 31243441 - 2¹ = 31243439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31243141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6520 + ... + 10246.

It is an arithmetic number, because the mean of its divisors is an integer number (3992688).

Almost surely, 2^31243441 is an apocalyptic number.

It is an amenable number.

31243441 is a deficient number, since it is larger than the sum of its proper divisors (698063).

31243441 is a wasteful number, since it uses less digits than its factorization.

31243441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911.

The product of its digits is 1152, while the sum is 22.

The square root of 31243441 is about 5589.5832581687. The cubic root of 31243441 is about 314.9582240727.

Adding to 31243441 its reverse (14434213), we get a palindrome (45677654).

It can be divided in two parts, 31243 and 441, that added together give a square (31684 = 178²).

The spelling of 31243441 in words is "thirty-one million, two hundred forty-three thousand, four hundred forty-one".