140540353 has 4 divisors (see below), whose sum is σ = 141382080. Its totient is φ = 139698628.

The previous prime is 140540341. The next prime is 140540363. The reversal of 140540353 is 353045041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140540353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140540303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420613 + ... + 420946.

It is an arithmetic number, because the mean of its divisors is an integer number (35345520).

Almost surely, 2^140540353 is an apocalyptic number.

It is an amenable number.

140540353 is a deficient number, since it is larger than the sum of its proper divisors (841727).

140540353 is an equidigital number, since it uses as much as digits as its factorization.

140540353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841726.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 140540353 is about 11854.9716574946. The cubic root of 140540353 is about 519.9165953510.

Adding to 140540353 its reverse (353045041), we get a palindrome (493585394).

The spelling of 140540353 in words is "one hundred forty million, five hundred forty thousand, three hundred fifty-three".