140442371 has 2 divisors, whose sum is σ = 140442372. Its totient is φ = 140442370.

The previous prime is 140442359. The next prime is 140442409. The reversal of 140442371 is 173244041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140442371 - 2¹⁰ = 140441347 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140442371.

It is not a weakly prime, because it can be changed into another prime (140442271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70221185 + 70221186.

It is an arithmetic number, because the mean of its divisors is an integer number (70221186).

Almost surely, 2^140442371 is an apocalyptic number.

140442371 is a deficient number, since it is larger than the sum of its proper divisors (1).

140442371 is an equidigital number, since it uses as much as digits as its factorization.

140442371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 140442371 is about 11850.8384091591. The cubic root of 140442371 is about 519.7957420158.

The spelling of 140442371 in words is "one hundred forty million, four hundred forty-two thousand, three hundred seventy-one".