140838723 has 16 divisors (see below), whose sum is σ = 212188800. Its totient is φ = 92300040.

The previous prime is 140838721. The next prime is 140838739. The reversal of 140838723 is 327838041.

It is not a de Polignac number, because 140838723 - 2¹ = 140838721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140838721) 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 15 ways as a sum of consecutive naturals, for example, 42613 + ... + 45798.

It is an arithmetic number, because the mean of its divisors is an integer number (13261800).

Almost surely, 2^140838723 is an apocalyptic number.

140838723 is a deficient number, since it is larger than the sum of its proper divisors (71350077).

140838723 is an equidigital number, since it uses as much as digits as its factorization.

140838723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88479 (or 88473 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 140838723 is about 11867.5491572607. The cubic root of 140838723 is about 520.2842664170.

The spelling of 140838723 in words is "one hundred forty million, eight hundred thirty-eight thousand, seven hundred twenty-three".