140321169 has 24 divisors (see below), whose sum is σ = 214568640. Its totient is φ = 88214112.

The previous prime is 140321089. The next prime is 140321177. The reversal of 140321169 is 961123041.

It is not a de Polignac number, because 140321169 - 2⁹ = 140320657 is a prime.

It is a super-2 number, since 2×140321169² = 39380060939053122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140325169) 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 23 ways as a sum of consecutive naturals, for example, 4972 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (8940360).

Almost surely, 2^140321169 is an apocalyptic number.

It is an amenable number.

140321169 is a deficient number, since it is larger than the sum of its proper divisors (74247471).

140321169 is a wasteful number, since it uses less digits than its factorization.

140321169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12581 (or 12578 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 140321169 is about 11845.7236587724. The cubic root of 140321169 is about 519.6461707839.

The spelling of 140321169 in words is "one hundred forty million, three hundred twenty-one thousand, one hundred sixty-nine".