140323537873 has 2 divisors, whose sum is σ = 140323537874. Its totient is φ = 140323537872.

The previous prime is 140323537843. The next prime is 140323537927. The reversal of 140323537873 is 378735323041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83167638544 + 57155899329 = 288388^2 + 239073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140323537873 is a prime.

It is not a weakly prime, because it can be changed into another prime (140323537843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70161768936 + 70161768937.

It is an arithmetic number, because the mean of its divisors is an integer number (70161768937).

Almost surely, 2^140323537873 is an apocalyptic number.

It is an amenable number.

140323537873 is a deficient number, since it is larger than the sum of its proper divisors (1).

140323537873 is an equidigital number, since it uses as much as digits as its factorization.

140323537873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 140323537873 in words is "one hundred forty billion, three hundred twenty-three million, five hundred thirty-seven thousand, eight hundred seventy-three".