140448431047 has 2 divisors, whose sum is σ = 140448431048. Its totient is φ = 140448431046.

The previous prime is 140448430981. The next prime is 140448431083. The reversal of 140448431047 is 740134844041.

It is a strong prime.

It is an emirp because it is prime and its reverse (740134844041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140448431047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140448431087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70224215523 + 70224215524.

It is an arithmetic number, because the mean of its divisors is an integer number (70224215524).

Almost surely, 2^140448431047 is an apocalyptic number.

140448431047 is a deficient number, since it is larger than the sum of its proper divisors (1).

140448431047 is an equidigital number, since it uses as much as digits as its factorization.

140448431047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 140448431047 in words is "one hundred forty billion, four hundred forty-eight million, four hundred thirty-one thousand, forty-seven".