140108523 has 4 divisors (see below), whose sum is σ = 186811368. Its totient is φ = 93405680.

The previous prime is 140108519. The next prime is 140108557. The reversal of 140108523 is 325801041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140108523 - 2² = 140108519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140108493 and 140108502.

It is not an unprimeable number, because it can be changed into a prime (140108123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23351418 + ... + 23351423.

It is an arithmetic number, because the mean of its divisors is an integer number (46702842).

Almost surely, 2^140108523 is an apocalyptic number.

140108523 is a deficient number, since it is larger than the sum of its proper divisors (46702845).

140108523 is an equidigital number, since it uses as much as digits as its factorization.

140108523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46702844.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 140108523 is about 11836.7446115898. The cubic root of 140108523 is about 519.3835433987.

Adding to 140108523 its reverse (325801041), we get a palindrome (465909564).

The spelling of 140108523 in words is "one hundred forty million, one hundred eight thousand, five hundred twenty-three".