140042759 has 2 divisors, whose sum is σ = 140042760. Its totient is φ = 140042758.

The previous prime is 140042741. The next prime is 140042783. The reversal of 140042759 is 957240041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140042759 - 2¹⁶ = 139977223 is a prime.

It is a super-2 number, since 2×140042759² = 39223948696664162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140042659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70021379 + 70021380.

It is an arithmetic number, because the mean of its divisors is an integer number (70021380).

Almost surely, 2^140042759 is an apocalyptic number.

140042759 is a deficient number, since it is larger than the sum of its proper divisors (1).

140042759 is an equidigital number, since it uses as much as digits as its factorization.

140042759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 140042759 is about 11833.9663257929. The cubic root of 140042759 is about 519.3022681030.

The spelling of 140042759 in words is "one hundred forty million, forty-two thousand, seven hundred fifty-nine".