140813363464381 has 4 divisors (see below), whose sum is σ = 141841198234332. Its totient is φ = 139785528694432.

The previous prime is 140813363464363. The next prime is 140813363464391. The reversal of 140813363464381 is 183464363318041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90942352776900 + 49871010687481 = 9536370^2 + 7061941^2 .

It is a cyclic number.

It is not a de Polignac number, because 140813363464381 - 2⁵ = 140813363464349 is a prime.

It is a super-2 number, since 2×140813363464381² (a number of 29 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 (140813363464391) 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 3 ways as a sum of consecutive naturals, for example, 513917384770 + ... + 513917385043.

It is an arithmetic number, because the mean of its divisors is an integer number (35460299558583).

Almost surely, 2^{140813363464381} is an apocalyptic number.

It is an amenable number.

140813363464381 is a deficient number, since it is larger than the sum of its proper divisors (1027834769951).

140813363464381 is a wasteful number, since it uses less digits than its factorization.

140813363464381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027834769950.

The product of its (nonzero) digits is 11943936, while the sum is 55.

The spelling of 140813363464381 in words is "one hundred forty trillion, eight hundred thirteen billion, three hundred sixty-three million, four hundred sixty-four thousand, three hundred eighty-one".