140320105 has 8 divisors (see below), whose sum is σ = 173816064. Its totient is φ = 108634800.

The previous prime is 140320099. The next prime is 140320109. The reversal of 140320105 is 501023041.

140320105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 140320105 - 2²⁷ = 6102377 is a prime.

It is a super-2 number, since 2×140320105² = 39379463734422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140320109) 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, 452491 + ... + 452800.

It is an arithmetic number, because the mean of its divisors is an integer number (21727008).

Almost surely, 2^140320105 is an apocalyptic number.

It is an amenable number.

140320105 is a deficient number, since it is larger than the sum of its proper divisors (33495959).

140320105 is an equidigital number, since it uses as much as digits as its factorization.

140320105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905327.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 140320105 is about 11845.6787479654. The cubic root of 140320105 is about 519.6448573567.

Adding to 140320105 its reverse (501023041), we get a palindrome (641343146).

The spelling of 140320105 in words is "one hundred forty million, three hundred twenty thousand, one hundred five".