140406259 has 8 divisors (see below), whose sum is σ = 160578560. Its totient is φ = 120262536.

The previous prime is 140406173. The next prime is 140406289. The reversal of 140406259 is 952604041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140406259 - 2⁷ = 140406131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140406259.

It is not an unprimeable number, because it can be changed into a prime (140406289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4702 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (20072320).

Almost surely, 2^140406259 is an apocalyptic number.

140406259 is a deficient number, since it is larger than the sum of its proper divisors (20172301).

140406259 is a wasteful number, since it uses less digits than its factorization.

140406259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14289.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 140406259 is about 11849.3147059229. The cubic root of 140406259 is about 519.7511864382.

The spelling of 140406259 in words is "one hundred forty million, four hundred six thousand, two hundred fifty-nine".