134401523 has 8 divisors (see below), whose sum is σ = 140037120. Its totient is φ = 128847240.

The previous prime is 134401513. The next prime is 134401537. The reversal of 134401523 is 325104431.

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 134401523 - 2²² = 130207219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134401513) 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, 16943 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (17504640).

Almost surely, 2^134401523 is an apocalyptic number.

134401523 is a deficient number, since it is larger than the sum of its proper divisors (5635597).

134401523 is a wasteful number, since it uses less digits than its factorization.

134401523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40657.

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

The square root of 134401523 is about 11593.1670823809. The cubic root of 134401523 is about 512.2336008310.

Adding to 134401523 its reverse (325104431), we get a palindrome (459505954).

The spelling of 134401523 in words is "one hundred thirty-four million, four hundred one thousand, five hundred twenty-three".