140002543997 has 2 divisors, whose sum is σ = 140002543998. Its totient is φ = 140002543996.

The previous prime is 140002543987. The next prime is 140002544021. The reversal of 140002543997 is 799345200041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138459154201 + 1543389796 = 372101^2 + 39286^2 .

It is a cyclic number.

It is not a de Polignac number, because 140002543997 - 2¹⁰ = 140002542973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140002543927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70001271998 + 70001271999.

It is an arithmetic number, because the mean of its divisors is an integer number (70001271999).

Almost surely, 2^140002543997 is an apocalyptic number.

It is an amenable number.

140002543997 is a deficient number, since it is larger than the sum of its proper divisors (1).

140002543997 is an equidigital number, since it uses as much as digits as its factorization.

140002543997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 140002543997 in words is "one hundred forty billion, two million, five hundred forty-three thousand, nine hundred ninety-seven".