140354304523 has 4 divisors (see below), whose sum is σ = 140366968128. Its totient is φ = 140341640920.

The previous prime is 140354304451. The next prime is 140354304547. The reversal of 140354304523 is 325403453041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140354304523 - 2⁹ = 140354304011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140354304323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6315163 + ... + 6337348.

It is an arithmetic number, because the mean of its divisors is an integer number (35091742032).

Almost surely, 2^140354304523 is an apocalyptic number.

140354304523 is a deficient number, since it is larger than the sum of its proper divisors (12663605).

140354304523 is a wasteful number, since it uses less digits than its factorization.

140354304523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663604.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 140354304523 its reverse (325403453041), we get a palindrome (465757757564).

The spelling of 140354304523 in words is "one hundred forty billion, three hundred fifty-four million, three hundred four thousand, five hundred twenty-three".