140431455540 has 48 divisors (see below), whose sum is σ = 436897863360. Its totient is φ = 37448388000.

The previous prime is 140431455539. The next prime is 140431455583. The reversal of 140431455540 is 45554134041.

140431455540 is a `hidden beast` number, since 1 + 40 + 4 + 31 + 45 + 5 + 540 = 666.

140431455540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140431455495 and 140431455504.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 130028586 + ... + 130029665.

It is an arithmetic number, because the mean of its divisors is an integer number (9102038820).

Almost surely, 2^140431455540 is an apocalyptic number.

140431455540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140431455540 is an abundant number, since it is smaller than the sum of its proper divisors (296466407820).

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

140431455540 is a wasteful number, since it uses less digits than its factorization.

140431455540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260058269 (or 260058261 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 140431455540 its reverse (45554134041), we get a palindrome (185985589581).

The spelling of 140431455540 in words is "one hundred forty billion, four hundred thirty-one million, four hundred fifty-five thousand, five hundred forty".