140134123 has 4 divisors (see below), whose sum is σ = 140172120. Its totient is φ = 140096128.

The previous prime is 140134117. The next prime is 140134151. The reversal of 140134123 is 321431041.

140134123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140134123 - 2²¹ = 138036971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140134123.

It is not an unprimeable number, because it can be changed into a prime (140134103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12790 + ... + 21067.

It is an arithmetic number, because the mean of its divisors is an integer number (35043030).

Almost surely, 2^140134123 is an apocalyptic number.

140134123 is a deficient number, since it is larger than the sum of its proper divisors (37997).

140134123 is an equidigital number, since it uses as much as digits as its factorization.

140134123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37996.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 140134123 is about 11837.8259406024. The cubic root of 140134123 is about 519.4151746150.

Adding to 140134123 its reverse (321431041), we get a palindrome (461565164).

The spelling of 140134123 in words is "one hundred forty million, one hundred thirty-four thousand, one hundred twenty-three".