140448993 has 8 divisors (see below), whose sum is σ = 190798848. Its totient is φ = 91865904.

The previous prime is 140448991. The next prime is 140449021. The reversal of 140448993 is 399844041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140448993 - 2¹ = 140448991 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (140448991) 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, 441505 + ... + 441822.

It is an arithmetic number, because the mean of its divisors is an integer number (23849856).

Almost surely, 2^140448993 is an apocalyptic number.

It is an amenable number.

140448993 is a deficient number, since it is larger than the sum of its proper divisors (50349855).

140448993 is an equidigital number, since it uses as much as digits as its factorization.

140448993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883383.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 140448993 is about 11851.1177953812. The cubic root of 140448993 is about 519.8039115193.

The spelling of 140448993 in words is "one hundred forty million, four hundred forty-eight thousand, nine hundred ninety-three".