140400313 has 2 divisors, whose sum is σ = 140400314. Its totient is φ = 140400312.

The previous prime is 140400287. The next prime is 140400319. The reversal of 140400313 is 313004041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114318864 + 26081449 = 10692^2 + 5107^2 .

It is a cyclic number.

It is not a de Polignac number, because 140400313 - 2⁹ = 140399801 is a prime.

It is not a weakly prime, because it can be changed into another prime (140400319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70200156 + 70200157.

It is an arithmetic number, because the mean of its divisors is an integer number (70200157).

Almost surely, 2^140400313 is an apocalyptic number.

It is an amenable number.

140400313 is a deficient number, since it is larger than the sum of its proper divisors (1).

140400313 is an equidigital number, since it uses as much as digits as its factorization.

140400313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140400313 is about 11849.0638026808. The cubic root of 140400313 is about 519.7438494334.

Adding to 140400313 its reverse (313004041), we get a palindrome (453404354).

The spelling of 140400313 in words is "one hundred forty million, four hundred thousand, three hundred thirteen".