140042223861 has 4 divisors (see below), whose sum is σ = 186722965152. Its totient is φ = 93361482572.

The previous prime is 140042223851. The next prime is 140042223863. The reversal of 140042223861 is 168322240041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168322240041 = 3 ⋅56107413347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140042223861 is a prime.

It is a super-2 number, since 2×140042223861² (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 (140042223863) 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, 23340370641 + ... + 23340370646.

It is an arithmetic number, because the mean of its divisors is an integer number (46680741288).

Almost surely, 2^140042223861 is an apocalyptic number.

It is an amenable number.

140042223861 is a deficient number, since it is larger than the sum of its proper divisors (46680741291).

140042223861 is an equidigital number, since it uses as much as digits as its factorization.

140042223861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46680741290.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 140042223861 in words is "one hundred forty billion, forty-two million, two hundred twenty-three thousand, eight hundred sixty-one".