140054968931 has 2 divisors, whose sum is σ = 140054968932. Its totient is φ = 140054968930.

The previous prime is 140054968919. The next prime is 140054968969. The reversal of 140054968931 is 139869450041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140054968931 is a prime.

It is a super-2 number, since 2×140054968931² (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 140054968931.

It is not a weakly prime, because it can be changed into another prime (140054967931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70027484465 + 70027484466.

It is an arithmetic number, because the mean of its divisors is an integer number (70027484466).

Almost surely, 2^140054968931 is an apocalyptic number.

140054968931 is a deficient number, since it is larger than the sum of its proper divisors (1).

140054968931 is an equidigital number, since it uses as much as digits as its factorization.

140054968931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 140054968931 in words is "one hundred forty billion, fifty-four million, nine hundred sixty-eight thousand, nine hundred thirty-one".