44140631 has 2 divisors, whose sum is σ = 44140632. Its totient is φ = 44140630.

The previous prime is 44140627. The next prime is 44140633. The reversal of 44140631 is 13604144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44140631 - 2² = 44140627 is a prime.

It is a super-2 number, since 2×44140631² = 3896790610156322, which contains 22 as substring.

Together with 44140633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 44140597 and 44140606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44140633) 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 as a sum of consecutive naturals, namely, 22070315 + 22070316.

It is an arithmetic number, because the mean of its divisors is an integer number (22070316).

Almost surely, 2^44140631 is an apocalyptic number.

44140631 is a deficient number, since it is larger than the sum of its proper divisors (1).

44140631 is an equidigital number, since it uses as much as digits as its factorization.

44140631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 44140631 is about 6643.8415845052. The cubic root of 44140631 is about 353.4105520286.

Adding to 44140631 its reverse (13604144), we get a palindrome (57744775).

The spelling of 44140631 in words is "forty-four million, one hundred forty thousand, six hundred thirty-one".