140304105 has 24 divisors (see below), whose sum is σ = 243551880. Its totient is φ = 74718720.

The previous prime is 140304089. The next prime is 140304107. The reversal of 140304105 is 501403041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14953689 + 125350416 = 3867^2 + 11196^2 .

It is not a de Polignac number, because 140304105 - 2⁴ = 140304089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140304107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35425 + ... + 39185.

It is an arithmetic number, because the mean of its divisors is an integer number (10147995).

Almost surely, 2^140304105 is an apocalyptic number.

140304105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140304105 is a deficient number, since it is larger than the sum of its proper divisors (103247775).

140304105 is a wasteful number, since it uses less digits than its factorization.

140304105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601 (or 4598 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140304105 is about 11845.0033769518. The cubic root of 140304105 is about 519.6251057710.

Adding to 140304105 its reverse (501403041), we get a palindrome (641707146).

The spelling of 140304105 in words is "one hundred forty million, three hundred four thousand, one hundred five".