140745213521 has 8 divisors (see below), whose sum is σ = 155702772288. Its totient is φ = 126148078000.

The previous prime is 140745213481. The next prime is 140745213529. The reversal of 140745213521 is 125312547041.

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 140745213521 - 2¹⁴ = 140745197137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140745213529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90104990 + ... + 90106551.

It is an arithmetic number, because the mean of its divisors is an integer number (19462846536).

Almost surely, 2^140745213521 is an apocalyptic number.

140745213521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140745213521 is a deficient number, since it is larger than the sum of its proper divisors (14957558767).

140745213521 is a wasteful number, since it uses less digits than its factorization.

140745213521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180211623.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 140745213521 in words is "one hundred forty billion, seven hundred forty-five million, two hundred thirteen thousand, five hundred twenty-one".