140105144221501 has 8 divisors (see below), whose sum is σ = 148852925767224. Its totient is φ = 131413618506240.

The previous prime is 140105144221481. The next prime is 140105144221507. The reversal of 140105144221501 is 105122441501041.

It can be written as a sum of positive squares in 4 ways, for example, as 99892728783225 + 40212415438276 = 9994635^2 + 6341326^2 .

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 140105144221501 - 2¹⁹ = 140105143697213 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 (140105144221507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14063952480 + ... + 14063962441.

It is an arithmetic number, because the mean of its divisors is an integer number (18606615720903).

Almost surely, 2^{140105144221501} is an apocalyptic number.

It is an amenable number.

140105144221501 is a deficient number, since it is larger than the sum of its proper divisors (8747781545723).

140105144221501 is a wasteful number, since it uses less digits than its factorization.

140105144221501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28127915231.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 140105144221501 its reverse (105122441501041), we get a palindrome (245227585722542).

The spelling of 140105144221501 in words is "one hundred forty trillion, one hundred five billion, one hundred forty-four million, two hundred twenty-one thousand, five hundred one".