140868113 has 2 divisors, whose sum is σ = 140868114. Its totient is φ = 140868112.

The previous prime is 140868041. The next prime is 140868131. The reversal of 140868113 is 311868041.

140868113 = 8392² + 8393².

It is a happy number.

Together with next prime (140868131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70442449 + 70425664 = 8393^2 + 8392^2 .

It is a cyclic number.

It is not a de Polignac number, because 140868113 - 2¹⁴ = 140851729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140868113.

It is not a weakly prime, because it can be changed into another prime (140868163) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70434056 + 70434057.

It is an arithmetic number, because the mean of its divisors is an integer number (70434057).

Almost surely, 2^140868113 is an apocalyptic number.

140868113 is the 8393-rd centered square number.

It is an amenable number.

140868113 is a deficient number, since it is larger than the sum of its proper divisors (1).

140868113 is an equidigital number, since it uses as much as digits as its factorization.

140868113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 140868113 is about 11868.7873432799. The cubic root of 140868113 is about 520.3204545968.

The spelling of 140868113 in words is "one hundred forty million, eight hundred sixty-eight thousand, one hundred thirteen".