140121532252452 has 48 divisors (see below), whose sum is σ = 329292907641152. Its totient is φ = 46373352819840.

The previous prime is 140121532252433. The next prime is 140121532252459. The reversal of 140121532252452 is 254252235121041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 140121532252452.

It is not an unprimeable number, because it can be changed into a prime (140121532252459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51289018 + ... + 53951889.

Almost surely, 2^{140121532252452} is an apocalyptic number.

140121532252452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140121532252452 is an abundant number, since it is smaller than the sum of its proper divisors (189171375388700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140121532252452 is a wasteful number, since it uses less digits than its factorization.

140121532252452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105241708 (or 105241706 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 140121532252452 its reverse (254252235121041), we get a palindrome (394373767373493).

The spelling of 140121532252452 in words is "one hundred forty trillion, one hundred twenty-one billion, five hundred thirty-two million, two hundred fifty-two thousand, four hundred fifty-two".