140403321 has 8 divisors (see below), whose sum is σ = 208004960. Its totient is φ = 93602196.

The previous prime is 140403301. The next prime is 140403337. The reversal of 140403321 is 123304041.

140403321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140403321 - 2²³ = 132014713 is a prime.

It is a Duffinian number.

140403321 is a modest number, since divided by 3321 gives 1404 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 140403294 and 140403303.

It is not an unprimeable number, because it can be changed into a prime (140403301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2600035 + ... + 2600088.

It is an arithmetic number, because the mean of its divisors is an integer number (26000620).

Almost surely, 2^140403321 is an apocalyptic number.

It is an amenable number.

140403321 is a deficient number, since it is larger than the sum of its proper divisors (67601639).

140403321 is an equidigital number, since it uses as much as digits as its factorization.

140403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200132 (or 5200126 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140403321 is about 11849.1907318601. The cubic root of 140403321 is about 519.7475611495.

Adding to 140403321 its reverse (123304041), we get a palindrome (263707362).

The spelling of 140403321 in words is "one hundred forty million, four hundred three thousand, three hundred twenty-one".