140134523 has 8 divisors (see below), whose sum is σ = 142937808. Its totient is φ = 137355264.

The previous prime is 140134447. The next prime is 140134529. The reversal of 140134523 is 325431041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140134523 - 2¹⁶ = 140068987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140134529) 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, 6011 + ... + 17787.

It is an arithmetic number, because the mean of its divisors is an integer number (17867226).

Almost surely, 2^140134523 is an apocalyptic number.

140134523 is a deficient number, since it is larger than the sum of its proper divisors (2803285).

140134523 is a wasteful number, since it uses less digits than its factorization.

140134523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 140134523 is about 11837.8428355845. The cubic root of 140134523 is about 519.4156688222.

Adding to 140134523 its reverse (325431041), we get a palindrome (465565564).

The spelling of 140134523 in words is "one hundred forty million, one hundred thirty-four thousand, five hundred twenty-three".