140471477831 has 2 divisors, whose sum is σ = 140471477832. Its totient is φ = 140471477830.

The previous prime is 140471477801. The next prime is 140471477837. The reversal of 140471477831 is 138774174041.

It is a strong prime.

It is an emirp because it is prime and its reverse (138774174041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140471477831 is a prime.

It is a super-2 number, since 2×140471477831² (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 (140471477837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70235738915 + 70235738916.

It is an arithmetic number, because the mean of its divisors is an integer number (70235738916).

Almost surely, 2^140471477831 is an apocalyptic number.

140471477831 is a deficient number, since it is larger than the sum of its proper divisors (1).

140471477831 is an equidigital number, since it uses as much as digits as its factorization.

140471477831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 140471477831 in words is "one hundred forty billion, four hundred seventy-one million, four hundred seventy-seven thousand, eight hundred thirty-one".