140775539 has 2 divisors, whose sum is σ = 140775540. Its totient is φ = 140775538.

The previous prime is 140775533. The next prime is 140775581. The reversal of 140775539 is 935577041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140775539 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 140775496 and 140775505.

It is not a weakly prime, because it can be changed into another prime (140775533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70387769 + 70387770.

It is an arithmetic number, because the mean of its divisors is an integer number (70387770).

Almost surely, 2^140775539 is an apocalyptic number.

140775539 is a deficient number, since it is larger than the sum of its proper divisors (1).

140775539 is an equidigital number, since it uses as much as digits as its factorization.

140775539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 140775539 is about 11864.8868094053. The cubic root of 140775539 is about 520.2064503221.

The spelling of 140775539 in words is "one hundred forty million, seven hundred seventy-five thousand, five hundred thirty-nine".