140431958347 has 2 divisors, whose sum is σ = 140431958348. Its totient is φ = 140431958346.

The previous prime is 140431958299. The next prime is 140431958351. The reversal of 140431958347 is 743859134041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140431958347 is a prime.

It is a super-2 number, since 2×140431958347² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140431958347.

It is not a weakly prime, because it can be changed into another prime (140431958377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70215979173 + 70215979174.

It is an arithmetic number, because the mean of its divisors is an integer number (70215979174).

Almost surely, 2^140431958347 is an apocalyptic number.

140431958347 is a deficient number, since it is larger than the sum of its proper divisors (1).

140431958347 is an equidigital number, since it uses as much as digits as its factorization.

140431958347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 140431958347 in words is "one hundred forty billion, four hundred thirty-one million, nine hundred fifty-eight thousand, three hundred forty-seven".