140306021452 has 24 divisors (see below), whose sum is σ = 256664360960. Its totient is φ = 67030638480.

The previous prime is 140306021447. The next prime is 140306021461. The reversal of 140306021452 is 254120603041.

140306021452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 140306021452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151598 + ... + 7171189.

Almost surely, 2^140306021452 is an apocalyptic number.

It is an amenable number.

140306021452 is a deficient number, since it is larger than the sum of its proper divisors (116358339508).

140306021452 is a wasteful number, since it uses less digits than its factorization.

140306021452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14322901 (or 14322899 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 140306021452 its reverse (254120603041), we get a palindrome (394426624493).

The spelling of 140306021452 in words is "one hundred forty billion, three hundred six million, twenty-one thousand, four hundred fifty-two".