140859601457 has 2 divisors, whose sum is σ = 140859601458. Its totient is φ = 140859601456.

The previous prime is 140859601447. The next prime is 140859601471. The reversal of 140859601457 is 754106958041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82622328481 + 58237272976 = 287441^2 + 241324^2 .

It is an emirp because it is prime and its reverse (754106958041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140859601457 - 2²² = 140855407153 is a prime.

It is not a weakly prime, because it can be changed into another prime (140859601447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70429800728 + 70429800729.

It is an arithmetic number, because the mean of its divisors is an integer number (70429800729).

Almost surely, 2^140859601457 is an apocalyptic number.

It is an amenable number.

140859601457 is a deficient number, since it is larger than the sum of its proper divisors (1).

140859601457 is an equidigital number, since it uses as much as digits as its factorization.

140859601457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 140859601457 in words is "one hundred forty billion, eight hundred fifty-nine million, six hundred one thousand, four hundred fifty-seven".