140251321 has 8 divisors (see below), whose sum is σ = 160977024. Its totient is φ = 119698080.

The previous prime is 140251297. The next prime is 140251361. The reversal of 140251321 is 123152041.

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 140251321 - 2⁹ = 140250809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140251361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41365 + ... + 44626.

It is an arithmetic number, because the mean of its divisors is an integer number (20122128).

Almost surely, 2^140251321 is an apocalyptic number.

It is an amenable number.

140251321 is a deficient number, since it is larger than the sum of its proper divisors (20725703).

140251321 is an equidigital number, since it uses as much as digits as its factorization.

140251321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86231.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140251321 is about 11842.7750548594. The cubic root of 140251321 is about 519.5599346394.

The spelling of 140251321 in words is "one hundred forty million, two hundred fifty-one thousand, three hundred twenty-one".