140343353 has 2 divisors, whose sum is σ = 140343354. Its totient is φ = 140343352.

The previous prime is 140343323. The next prime is 140343373. The reversal of 140343353 is 353343041.

It is a happy number.

140343353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133010089 + 7333264 = 11533^2 + 2708^2 .

It is an emirp because it is prime and its reverse (353343041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140343353 - 2¹² = 140339257 is a prime.

It is not a weakly prime, because it can be changed into another prime (140343323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70171676 + 70171677.

It is an arithmetic number, because the mean of its divisors is an integer number (70171677).

Almost surely, 2^140343353 is an apocalyptic number.

It is an amenable number.

140343353 is a deficient number, since it is larger than the sum of its proper divisors (1).

140343353 is an equidigital number, since it uses as much as digits as its factorization.

140343353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 140343353 is about 11846.6599934327. The cubic root of 140343353 is about 519.6735537352.

Adding to 140343353 its reverse (353343041), we get a palindrome (493686394).

The spelling of 140343353 in words is "one hundred forty million, three hundred forty-three thousand, three hundred fifty-three".