40140259 has 2 divisors, whose sum is σ = 40140260. Its totient is φ = 40140258.

The previous prime is 40140253. The next prime is 40140283. The reversal of 40140259 is 95204104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40140259 - 2³ = 40140251 is a prime.

It is a super-2 number, since 2×40140259² = 3222480785174162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40140251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20070129 + 20070130.

It is an arithmetic number, because the mean of its divisors is an integer number (20070130).

Almost surely, 2^40140259 is an apocalyptic number.

40140259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40140259 is an equidigital number, since it uses as much as digits as its factorization.

40140259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 40140259 is about 6335.6340645590. The cubic root of 40140259 is about 342.3944555532.

The spelling of 40140259 in words is "forty million, one hundred forty thousand, two hundred fifty-nine".