31134443 has 2 divisors, whose sum is σ = 31134444. Its totient is φ = 31134442.

The previous prime is 31134413. The next prime is 31134469. The reversal of 31134443 is 34443113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31134443 - 2¹⁶ = 31068907 is a prime.

It is not a weakly prime, because it can be changed into another prime (31134403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15567221 + 15567222.

It is an arithmetic number, because the mean of its divisors is an integer number (15567222).

Almost surely, 2^31134443 is an apocalyptic number.

31134443 is a deficient number, since it is larger than the sum of its proper divisors (1).

31134443 is an equidigital number, since it uses as much as digits as its factorization.

31134443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 31134443 is about 5579.8246388215. The cubic root of 31134443 is about 314.5915357402.

Adding to 31134443 its reverse (34443113), we get a palindrome (65577556).

The spelling of 31134443 in words is "thirty-one million, one hundred thirty-four thousand, four hundred forty-three".