140451352545221 has 2 divisors, whose sum is σ = 140451352545222. Its totient is φ = 140451352545220.

The previous prime is 140451352545187. The next prime is 140451352545271. The reversal of 140451352545221 is 122545253154041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139311399150625 + 1139953394596 = 11803025^2 + 1067686^2 .

It is a cyclic number.

It is not a de Polignac number, because 140451352545221 - 2⁶ = 140451352545157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140451352545271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70225676272610 + 70225676272611.

It is an arithmetic number, because the mean of its divisors is an integer number (70225676272611).

Almost surely, 2^{140451352545221} is an apocalyptic number.

It is an amenable number.

140451352545221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140451352545221 is an equidigital number, since it uses as much as digits as its factorization.

140451352545221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960000, while the sum is 44.

The spelling of 140451352545221 in words is "one hundred forty trillion, four hundred fifty-one billion, three hundred fifty-two million, five hundred forty-five thousand, two hundred twenty-one".