140842476923437 has 2 divisors, whose sum is σ = 140842476923438. Its totient is φ = 140842476923436.

The previous prime is 140842476923389. The next prime is 140842476923471. The reversal of 140842476923437 is 734329674248041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91939504843081 + 48902972080356 = 9588509^2 + 6993066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140842476923437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140842476923537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70421238461718 + 70421238461719.

It is an arithmetic number, because the mean of its divisors is an integer number (70421238461719).

Almost surely, 2^{140842476923437} is an apocalyptic number.

It is an amenable number.

140842476923437 is a deficient number, since it is larger than the sum of its proper divisors (1).

140842476923437 is an equidigital number, since it uses as much as digits as its factorization.

140842476923437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 195084288, while the sum is 64.

The spelling of 140842476923437 in words is "one hundred forty trillion, eight hundred forty-two billion, four hundred seventy-six million, nine hundred twenty-three thousand, four hundred thirty-seven".