31483143 has 12 divisors (see below), whose sum is σ = 45634680. Its totient is φ = 20915376.

The previous prime is 31483117. The next prime is 31483163. The reversal of 31483143 is 34138413.

It is not a de Polignac number, because 31483143 - 2⁹ = 31482631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31483163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3333 + ... + 8606.

It is an arithmetic number, because the mean of its divisors is an integer number (3802890).

Almost surely, 2^31483143 is an apocalyptic number.

31483143 is a deficient number, since it is larger than the sum of its proper divisors (14151537).

31483143 is a wasteful number, since it uses less digits than its factorization.

31483143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12238 (or 12235 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 31483143 is about 5610.9841382773. The cubic root of 31483143 is about 315.7616339185.

It can be divided in two parts, 31483 and 143, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 31483143 in words is "thirty-one million, four hundred eighty-three thousand, one hundred forty-three".