140978471841 has 15 divisors (see below), whose sum is σ = 210602518401. Its totient is φ = 93983395068.

The previous prime is 140978471831. The next prime is 140978471857. The reversal of 140978471841 is 148174879041.

The square root of 140978471841 is 375471.

It is a perfect power (a square), and thus also a powerful number.

140978471841 is a `hidden beast` number, since 1 + 4 + 0 + 97 + 8 + 471 + 84 + 1 = 666.

It is not a de Polignac number, because 140978471841 - 2⁹ = 140978471329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140978471831) 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 14 ways as a sum of consecutive naturals, for example, 3358380 + ... + 3400098.

Almost surely, 2^140978471841 is an apocalyptic number.

140978471841 is the 375471-st square number.

140978471841 is the 187736-th centered octagonal number.

It is an amenable number.

140978471841 is a deficient number, since it is larger than the sum of its proper divisors (69624046560).

140978471841 is an frugal number, since it uses more digits than its factorization.

140978471841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83450 (or 41722 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 140978471841 in words is "one hundred forty billion, nine hundred seventy-eight million, four hundred seventy-one thousand, eight hundred forty-one".