140524051991 has 2 divisors, whose sum is σ = 140524051992. Its totient is φ = 140524051990.

The previous prime is 140524051973. The next prime is 140524052021. The reversal of 140524051991 is 199150425041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140524051991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140524051931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70262025995 + 70262025996.

It is an arithmetic number, because the mean of its divisors is an integer number (70262025996).

Almost surely, 2^140524051991 is an apocalyptic number.

140524051991 is a deficient number, since it is larger than the sum of its proper divisors (1).

140524051991 is an equidigital number, since it uses as much as digits as its factorization.

140524051991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 140524051991 in words is "one hundred forty billion, five hundred twenty-four million, fifty-one thousand, nine hundred ninety-one".