140521124105 has 8 divisors (see below), whose sum is σ = 168630030792. Its totient is φ = 112413778048.

The previous prime is 140521124101. The next prime is 140521124209. The reversal of 140521124105 is 501421125041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 935197561 + 139585926544 = 30581^2 + 373612^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140521124105 - 2² = 140521124101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140521124101) 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 7 ways as a sum of consecutive naturals, for example, 181964 + ... + 560493.

It is an arithmetic number, because the mean of its divisors is an integer number (21078753849).

Almost surely, 2^140521124105 is an apocalyptic number.

It is an amenable number.

140521124105 is a deficient number, since it is larger than the sum of its proper divisors (28108906687).

140521124105 is an equidigital number, since it uses as much as digits as its factorization.

140521124105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780315.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 140521124105 its reverse (501421125041), we get a palindrome (641942249146).

The spelling of 140521124105 in words is "one hundred forty billion, five hundred twenty-one million, one hundred twenty-four thousand, one hundred five".