140501121544521 has 12 divisors (see below), whose sum is σ = 202946197159680. Its totient is φ = 93667353113880.

The previous prime is 140501121544463. The next prime is 140501121544523. The reversal of 140501121544521 is 125445121105041.

140501121544521 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 0 + 1 + 121 + 5 + 4 + 4 + 521 = 666.

It is not a de Polignac number, because 140501121544521 - 2¹⁵ = 140501121511753 is a prime.

It is a super-4 number, since 4×140501121544521⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (140501121544523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12688560 + ... + 21023838.

It is an arithmetic number, because the mean of its divisors is an integer number (16912183096640).

Almost surely, 2^{140501121544521} is an apocalyptic number.

It is an amenable number.

140501121544521 is a deficient number, since it is larger than the sum of its proper divisors (62445075615159).

140501121544521 is a wasteful number, since it uses less digits than its factorization.

140501121544521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10208196 (or 10208193 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 140501121544521 its reverse (125445121105041), we get a palindrome (265946242649562).

The spelling of 140501121544521 in words is "one hundred forty trillion, five hundred one billion, one hundred twenty-one million, five hundred forty-four thousand, five hundred twenty-one".