140443512061 has 4 divisors (see below), whose sum is σ = 140457749824. Its totient is φ = 140429274300.

The previous prime is 140443512059. The next prime is 140443512073. The reversal of 140443512061 is 160215344041.

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: 160215344041 = 599 ⋅267471359.

It is a cyclic number.

It is not a de Polignac number, because 140443512061 - 2¹ = 140443512059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140443512661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7104075 + ... + 7123816.

It is an arithmetic number, because the mean of its divisors is an integer number (35114437456).

Almost surely, 2^140443512061 is an apocalyptic number.

It is an amenable number.

140443512061 is a deficient number, since it is larger than the sum of its proper divisors (14237763).

140443512061 is an equidigital number, since it uses as much as digits as its factorization.

140443512061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14237762.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 140443512061 in words is "one hundred forty billion, four hundred forty-three million, five hundred twelve thousand, sixty-one".