140027539 has 2 divisors, whose sum is σ = 140027540. Its totient is φ = 140027538.

The previous prime is 140027491. The next prime is 140027543. The reversal of 140027539 is 935720041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140027539 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140027539.

It is not a weakly prime, because it can be changed into another prime (140027599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70013769 + 70013770.

It is an arithmetic number, because the mean of its divisors is an integer number (70013770).

Almost surely, 2^140027539 is an apocalyptic number.

140027539 is a deficient number, since it is larger than the sum of its proper divisors (1).

140027539 is an equidigital number, since it uses as much as digits as its factorization.

140027539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 140027539 is about 11833.3232441272. The cubic root of 140027539 is about 519.2834546422.

The spelling of 140027539 in words is "one hundred forty million, twenty-seven thousand, five hundred thirty-nine".