140582326981 has 8 divisors (see below), whose sum is σ = 141307085304. Its totient is φ = 139857681600.

The previous prime is 140582326891. The next prime is 140582326993. The reversal of 140582326981 is 189623285041.

It can be written as a sum of positive squares in 4 ways, for example, as 42206004481 + 98376322500 = 205441^2 + 313650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140582326981 - 2¹⁵ = 140582294213 is a prime.

It is a super-2 number, since 2×140582326981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140582306981) 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 7 ways as a sum of consecutive naturals, for example, 3783811 + ... + 3820783.

It is an arithmetic number, because the mean of its divisors is an integer number (17663385663).

Almost surely, 2^140582326981 is an apocalyptic number.

It is an amenable number.

140582326981 is a deficient number, since it is larger than the sum of its proper divisors (724758323).

140582326981 is a wasteful number, since it uses less digits than its factorization.

140582326981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56471.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 140582326981 in words is "one hundred forty billion, five hundred eighty-two million, three hundred twenty-six thousand, nine hundred eighty-one".