140545550261 has 2 divisors, whose sum is σ = 140545550262. Its totient is φ = 140545550260.

The previous prime is 140545550227. The next prime is 140545550263. The reversal of 140545550261 is 162055545041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88666377361 + 51879172900 = 297769^2 + 227770^2 .

It is a cyclic number.

It is not a de Polignac number, because 140545550261 - 2¹⁰ = 140545549237 is a prime.

Together with 140545550263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140545550263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70272775130 + 70272775131.

It is an arithmetic number, because the mean of its divisors is an integer number (70272775131).

Almost surely, 2^140545550261 is an apocalyptic number.

It is an amenable number.

140545550261 is a deficient number, since it is larger than the sum of its proper divisors (1).

140545550261 is an equidigital number, since it uses as much as digits as its factorization.

140545550261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 140545550261 in words is "one hundred forty billion, five hundred forty-five million, five hundred fifty thousand, two hundred sixty-one".