140439301 has 4 divisors (see below), whose sum is σ = 140469100. Its totient is φ = 140409504.

The previous prime is 140439289. The next prime is 140439307. The reversal of 140439301 is 103934041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103934041 = 31 ⋅3352711.

It can be written as a sum of positive squares in 2 ways, for example, as 51136801 + 89302500 = 7151^2 + 9450^2 .

It is a cyclic number.

It is not a de Polignac number, because 140439301 - 2¹⁷ = 140308229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140439307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6096 + ... + 17833.

It is an arithmetic number, because the mean of its divisors is an integer number (35117275).

Almost surely, 2^140439301 is an apocalyptic number.

It is an amenable number.

140439301 is a deficient number, since it is larger than the sum of its proper divisors (29799).

140439301 is an equidigital number, since it uses as much as digits as its factorization.

140439301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29798.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 140439301 is about 11850.7088817505. The cubic root of 140439301 is about 519.7919544966.

The spelling of 140439301 in words is "one hundred forty million, four hundred thirty-nine thousand, three hundred one".