31441493 has 4 divisors (see below), whose sum is σ = 31452780. Its totient is φ = 31430208.

The previous prime is 31441463. The next prime is 31441499. The reversal of 31441493 is 39414413.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39414413 = 107 ⋅368359.

It can be written as a sum of positive squares in 2 ways, for example, as 24671089 + 6770404 = 4967^2 + 2602^2 .

It is a cyclic number.

It is not a de Polignac number, because 31441493 - 2⁸ = 31441237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441499) 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, 1871 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (7863195).

Almost surely, 2^31441493 is an apocalyptic number.

It is an amenable number.

31441493 is a deficient number, since it is larger than the sum of its proper divisors (11287).

31441493 is an equidigital number, since it uses as much as digits as its factorization.

31441493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11286.

The product of its digits is 5184, while the sum is 29.

The square root of 31441493 is about 5607.2714398360. The cubic root of 31441493 is about 315.6223289386.

The spelling of 31441493 in words is "thirty-one million, four hundred forty-one thousand, four hundred ninety-three".