140652205457 has 2 divisors, whose sum is σ = 140652205458. Its totient is φ = 140652205456.

The previous prime is 140652205433. The next prime is 140652205511. The reversal of 140652205457 is 754502256041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136463009281 + 4189196176 = 369409^2 + 64724^2 .

It is a cyclic number.

It is not a de Polignac number, because 140652205457 - 2¹⁶ = 140652139921 is a prime.

It is not a weakly prime, because it can be changed into another prime (140652205957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70326102728 + 70326102729.

It is an arithmetic number, because the mean of its divisors is an integer number (70326102729).

Almost surely, 2^140652205457 is an apocalyptic number.

It is an amenable number.

140652205457 is a deficient number, since it is larger than the sum of its proper divisors (1).

140652205457 is an equidigital number, since it uses as much as digits as its factorization.

140652205457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 140652205457 in words is "one hundred forty billion, six hundred fifty-two million, two hundred five thousand, four hundred fifty-seven".