134159951523 has 18 divisors (see below), whose sum is σ = 193710299724. Its totient is φ = 82554894864.

The previous prime is 134159951521. The next prime is 134159951557. The reversal of 134159951523 is 325159951431.

It is not a de Polignac number, because 134159951523 - 2¹ = 134159951521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134159951521) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8239236 + ... + 8255502.

It is an arithmetic number, because the mean of its divisors is an integer number (10761683318).

Almost surely, 2^134159951523 is an apocalyptic number.

134159951523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

134159951523 is a deficient number, since it is larger than the sum of its proper divisors (59550348201).

134159951523 is an frugal number, since it uses more digits than its factorization.

134159951523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32563 (or 16283 counting only the distinct ones).

The product of its digits is 729000, while the sum is 48.

Multiplying 134159951523 by its sum of digits (48), we get a square (6439677673104 = 2537652²).

The spelling of 134159951523 in words is "one hundred thirty-four billion, one hundred fifty-nine million, nine hundred fifty-one thousand, five hundred twenty-three".