140247255231 has 24 divisors (see below), whose sum is σ = 218542905360. Its totient is φ = 86337927936.

The previous prime is 140247255223. The next prime is 140247255251. The reversal of 140247255231 is 132552742041.

140247255231 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 4 + 72 + 552 + 31 = 666.

140247255231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140247255231 - 2³ = 140247255223 is a prime.

It is a super-2 number, since 2×140247255231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140247255251) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8639521 + ... + 8655738.

It is an arithmetic number, because the mean of its divisors is an integer number (9105954390).

Almost surely, 2^140247255231 is an apocalyptic number.

140247255231 is a deficient number, since it is larger than the sum of its proper divisors (78295650129).

140247255231 is a wasteful number, since it uses less digits than its factorization.

140247255231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17295335 (or 17295332 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 140247255231 its reverse (132552742041), we get a palindrome (272799997272).

The spelling of 140247255231 in words is "one hundred forty billion, two hundred forty-seven million, two hundred fifty-five thousand, two hundred thirty-one".