140806323 has 32 divisors (see below), whose sum is σ = 239040000. Its totient is φ = 80245728.

The previous prime is 140806307. The next prime is 140806333. The reversal of 140806323 is 323608041.

It is a happy number.

It is not a de Polignac number, because 140806323 - 2⁴ = 140806307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140806333) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 93565 + ... + 95057.

It is an arithmetic number, because the mean of its divisors is an integer number (7470000).

Almost surely, 2^140806323 is an apocalyptic number.

140806323 is a deficient number, since it is larger than the sum of its proper divisors (98233677).

140806323 is a wasteful number, since it uses less digits than its factorization.

140806323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 140806323 is about 11866.1840117200. The cubic root of 140806323 is about 520.2443661616.

The spelling of 140806323 in words is "one hundred forty million, eight hundred six thousand, three hundred twenty-three".