140440259 has 2 divisors, whose sum is σ = 140440260. Its totient is φ = 140440258.

The previous prime is 140440217. The next prime is 140440297. The reversal of 140440259 is 952044041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140440259 - 2²⁰ = 139391683 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (140440459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70220129 + 70220130.

It is an arithmetic number, because the mean of its divisors is an integer number (70220130).

Almost surely, 2^140440259 is an apocalyptic number.

140440259 is a deficient number, since it is larger than the sum of its proper divisors (1).

140440259 is an equidigital number, since it uses as much as digits as its factorization.

140440259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 140440259 is about 11850.7493012045. The cubic root of 140440259 is about 519.7931364059.

The spelling of 140440259 in words is "one hundred forty million, four hundred forty thousand, two hundred fifty-nine".