140663539 has 2 divisors, whose sum is σ = 140663540. Its totient is φ = 140663538.

The previous prime is 140663513. The next prime is 140663573. The reversal of 140663539 is 935366041.

140663539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (935366041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140663539 - 2¹⁵ = 140630771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140663498 and 140663507.

It is not a weakly prime, because it can be changed into another prime (140663639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70331769 + 70331770.

It is an arithmetic number, because the mean of its divisors is an integer number (70331770).

Almost surely, 2^140663539 is an apocalyptic number.

140663539 is a deficient number, since it is larger than the sum of its proper divisors (1).

140663539 is an equidigital number, since it uses as much as digits as its factorization.

140663539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 140663539 is about 11860.1660612320. The cubic root of 140663539 is about 520.0684562243.

The spelling of 140663539 in words is "one hundred forty million, six hundred sixty-three thousand, five hundred thirty-nine".