140123955 has 48 divisors (see below), whose sum is σ = 239755680. Its totient is φ = 69866496.

The previous prime is 140123941. The next prime is 140123957. The reversal of 140123955 is 559321041.

140123955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140123955 - 2⁴ = 140123939 is a prime.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 611781 + ... + 612009.

It is an arithmetic number, because the mean of its divisors is an integer number (4994910).

Almost surely, 2^140123955 is an apocalyptic number.

140123955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140123955 is a deficient number, since it is larger than the sum of its proper divisors (99631725).

140123955 is a wasteful number, since it uses less digits than its factorization.

140123955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 140123955 is about 11837.3964620604. The cubic root of 140123955 is about 519.4026115525.

Adding to 140123955 its reverse (559321041), we get a palindrome (699444996).

The spelling of 140123955 in words is "one hundred forty million, one hundred twenty-three thousand, nine hundred fifty-five".