100140345 has 36 divisors (see below), whose sum is σ = 177350628. Its totient is φ = 52257600.

The previous prime is 100140311. The next prime is 100140377. The reversal of 100140345 is 543041001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16088121 + 84052224 = 4011^2 + 9168^2 .

It is not a de Polignac number, because 100140345 - 2¹⁰ = 100139321 is a prime.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 524200 + ... + 524390.

Almost surely, 2^100140345 is an apocalyptic number.

100140345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100140345 is a deficient number, since it is larger than the sum of its proper divisors (77210283).

100140345 is an equidigital number, since it uses as much as digits as its factorization.

100140345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 260 counting only the distinct ones).

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

The square root of 100140345 is about 10007.0147896363. The cubic root of 100140345 is about 464.3759231197.

Adding to 100140345 its reverse (543041001), we get a palindrome (643181346).

The spelling of 100140345 in words is "one hundred million, one hundred forty thousand, three hundred forty-five".