140824321 has 8 divisors (see below), whose sum is σ = 153828864. Its totient is φ = 127853520.

The previous prime is 140824291. The next prime is 140824363. The reversal of 140824321 is 123428041.

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 140824321 - 2¹¹ = 140822273 is a prime.

It is a super-2 number, since 2×140824321² = 39662978770222082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140824721) 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, 736 + ... + 16798.

It is an arithmetic number, because the mean of its divisors is an integer number (19228608).

Almost surely, 2^140824321 is an apocalyptic number.

140824321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140824321 is a deficient number, since it is larger than the sum of its proper divisors (13004543).

140824321 is a wasteful number, since it uses less digits than its factorization.

140824321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16871.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 140824321 is about 11866.9423610297. The cubic root of 140824321 is about 520.2665312628.

The spelling of 140824321 in words is "one hundred forty million, eight hundred twenty-four thousand, three hundred twenty-one".