140426873 has 2 divisors, whose sum is σ = 140426874. Its totient is φ = 140426872.

The previous prime is 140426861. The next prime is 140426893. The reversal of 140426873 is 378624041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123054649 + 17372224 = 11093^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 140426873 - 2⁴ = 140426857 is a prime.

It is not a weakly prime, because it can be changed into another prime (140426813) 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 as a sum of consecutive naturals, namely, 70213436 + 70213437.

It is an arithmetic number, because the mean of its divisors is an integer number (70213437).

Almost surely, 2^140426873 is an apocalyptic number.

It is an amenable number.

140426873 is a deficient number, since it is larger than the sum of its proper divisors (1).

140426873 is an equidigital number, since it uses as much as digits as its factorization.

140426873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 140426873 is about 11850.1845133314. The cubic root of 140426873 is about 519.7766212650.

The spelling of 140426873 in words is "one hundred forty million, four hundred twenty-six thousand, eight hundred seventy-three".