140601621443 has 4 divisors (see below), whose sum is σ = 140603065848. Its totient is φ = 140600177040.

The previous prime is 140601621439. The next prime is 140601621463. The reversal of 140601621443 is 344126106041.

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

It is a cyclic number.

It is not a de Polignac number, because 140601621443 - 2² = 140601621439 is a prime.

It is a super-3 number, since 3×140601621443³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140601621463) 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, 564746 + ... + 774687.

It is an arithmetic number, because the mean of its divisors is an integer number (35150766462).

Almost surely, 2^140601621443 is an apocalyptic number.

140601621443 is a deficient number, since it is larger than the sum of its proper divisors (1444405).

140601621443 is a wasteful number, since it uses less digits than its factorization.

140601621443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444404.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 140601621443 its reverse (344126106041), we get a palindrome (484727727484).

The spelling of 140601621443 in words is "one hundred forty billion, six hundred one million, six hundred twenty-one thousand, four hundred forty-three".