140671253221 has 8 divisors (see below), whose sum is σ = 141441007064. Its totient is φ = 139901921280.

The previous prime is 140671253207. The next prime is 140671253227. The reversal of 140671253221 is 122352176041.

It can be written as a sum of positive squares in 4 ways, for example, as 62405036100 + 78266217121 = 249810^2 + 279761^2 .

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 140671253221 - 2¹⁵ = 140671220453 is a prime.

It is a super-3 number, since 3×140671253221³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140671253227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575161 + ... + 782401.

It is an arithmetic number, because the mean of its divisors is an integer number (17680125883).

Almost surely, 2^140671253221 is an apocalyptic number.

It is an amenable number.

140671253221 is a deficient number, since it is larger than the sum of its proper divisors (769753843).

140671253221 is a wasteful number, since it uses less digits than its factorization.

140671253221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210951.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 140671253221 in words is "one hundred forty billion, six hundred seventy-one million, two hundred fifty-three thousand, two hundred twenty-one".