140404252455437 has 2 divisors, whose sum is σ = 140404252455438. Its totient is φ = 140404252455436.

The previous prime is 140404252455421. The next prime is 140404252455587. The reversal of 140404252455437 is 734554252404041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90326282112196 + 50077970343241 = 9504014^2 + 7076579^2 .

It is a cyclic number.

It is not a de Polignac number, because 140404252455437 - 2⁴ = 140404252455421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140404252475437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70202126227718 + 70202126227719.

It is an arithmetic number, because the mean of its divisors is an integer number (70202126227719).

Almost surely, 2^{140404252455437} is an apocalyptic number.

It is an amenable number.

140404252455437 is a deficient number, since it is larger than the sum of its proper divisors (1).

140404252455437 is an equidigital number, since it uses as much as digits as its factorization.

140404252455437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752000, while the sum is 50.

The spelling of 140404252455437 in words is "one hundred forty trillion, four hundred four billion, two hundred fifty-two million, four hundred fifty-five thousand, four hundred thirty-seven".