140312351447 has 2 divisors, whose sum is σ = 140312351448. Its totient is φ = 140312351446.

The previous prime is 140312351353. The next prime is 140312351477. The reversal of 140312351447 is 744153213041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140312351447 - 2²⁴ = 140295574231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140312351477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70156175723 + 70156175724.

It is an arithmetic number, because the mean of its divisors is an integer number (70156175724).

Almost surely, 2^140312351447 is an apocalyptic number.

140312351447 is a deficient number, since it is larger than the sum of its proper divisors (1).

140312351447 is an equidigital number, since it uses as much as digits as its factorization.

140312351447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 140312351447 its reverse (744153213041), we get a palindrome (884465564488).

The spelling of 140312351447 in words is "one hundred forty billion, three hundred twelve million, three hundred fifty-one thousand, four hundred forty-seven".