140123954 has 16 divisors (see below), whose sum is σ = 215194560. Its totient is φ = 68409360.

The previous prime is 140123941. The next prime is 140123957. The reversal of 140123954 is 459321041.

It is not an unprimeable number, because it can be changed into a prime (140123957) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12827 + ... + 21089.

It is an arithmetic number, because the mean of its divisors is an integer number (13449660).

Almost surely, 2^140123954 is an apocalyptic number.

140123954 is a deficient number, since it is larger than the sum of its proper divisors (75070606).

140123954 is a wasteful number, since it uses less digits than its factorization.

140123954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8465.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 140123954 is about 11837.3964198214. The cubic root of 140123954 is about 519.4026103169.

Adding to 140123954 its reverse (459321041), we get a palindrome (599444995).

The spelling of 140123954 in words is "one hundred forty million, one hundred twenty-three thousand, nine hundred fifty-four".