140323845 has 16 divisors (see below), whose sum is σ = 226743552. Its totient is φ = 74097600.

The previous prime is 140323817. The next prime is 140323861. The reversal of 140323845 is 548323041.

It is not a de Polignac number, because 140323845 - 2⁹ = 140323333 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44797 + ... + 47826.

It is an arithmetic number, because the mean of its divisors is an integer number (14171472).

Almost surely, 2^140323845 is an apocalyptic number.

140323845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140323845 is a deficient number, since it is larger than the sum of its proper divisors (86419707).

140323845 is a wasteful number, since it uses less digits than its factorization.

140323845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92732.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 140323845 is about 11845.8366103876. The cubic root of 140323845 is about 519.6494740734.

Adding to 140323845 its reverse (548323041), we get a palindrome (688646886).

The spelling of 140323845 in words is "one hundred forty million, three hundred twenty-three thousand, eight hundred forty-five".