31334641 has 4 divisors (see below), whose sum is σ = 33745012. Its totient is φ = 28924272.

The previous prime is 31334617. The next prime is 31334651. The reversal of 31334641 is 14643313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2819041 + 28515600 = 1679^2 + 5340^2 .

It is not a de Polignac number, because 31334641 - 2¹⁷ = 31203569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31334651) 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, 1205166 + ... + 1205191.

It is an arithmetic number, because the mean of its divisors is an integer number (8436253).

Almost surely, 2^31334641 is an apocalyptic number.

It is an amenable number.

31334641 is a deficient number, since it is larger than the sum of its proper divisors (2410371).

31334641 is a wasteful number, since it uses less digits than its factorization.

31334641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410370.

The product of its digits is 2592, while the sum is 25.

The square root of 31334641 is about 5597.7353456554. The cubic root of 31334641 is about 315.2643820544.

Adding to 31334641 its reverse (14643313), we get a palindrome (45977954).

The spelling of 31334641 in words is "thirty-one million, three hundred thirty-four thousand, six hundred forty-one".