140455313 has 2 divisors, whose sum is σ = 140455314. Its totient is φ = 140455312.

The previous prime is 140455303. The next prime is 140455331. The reversal of 140455313 is 313554041.

140455313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (140455331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133448704 + 7006609 = 11552^2 + 2647^2 .

It is a cyclic number.

It is not a de Polignac number, because 140455313 - 2⁸ = 140455057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140455303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70227656 + 70227657.

It is an arithmetic number, because the mean of its divisors is an integer number (70227657).

Almost surely, 2^140455313 is an apocalyptic number.

It is an amenable number.

140455313 is a deficient number, since it is larger than the sum of its proper divisors (1).

140455313 is an equidigital number, since it uses as much as digits as its factorization.

140455313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 140455313 is about 11851.3844338963. The cubic root of 140455313 is about 519.8117082085.

The spelling of 140455313 in words is "one hundred forty million, four hundred fifty-five thousand, three hundred thirteen".