140045347447 has 2 divisors, whose sum is σ = 140045347448. Its totient is φ = 140045347446.

The previous prime is 140045347439. The next prime is 140045347529. The reversal of 140045347447 is 744743540041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140045347447 - 2³ = 140045347439 is a prime.

It is a super-2 number, since 2×140045347447² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140045347147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70022673723 + 70022673724.

It is an arithmetic number, because the mean of its divisors is an integer number (70022673724).

Almost surely, 2^140045347447 is an apocalyptic number.

140045347447 is a deficient number, since it is larger than the sum of its proper divisors (1).

140045347447 is an equidigital number, since it uses as much as digits as its factorization.

140045347447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752640, while the sum is 43.

Adding to 140045347447 its reverse (744743540041), we get a palindrome (884788887488).

The spelling of 140045347447 in words is "one hundred forty billion, forty-five million, three hundred forty-seven thousand, four hundred forty-seven".