134515123 has 4 divisors (see below), whose sum is σ = 135542088. Its totient is φ = 133488160.

The previous prime is 134515111. The next prime is 134515127. The reversal of 134515123 is 321515431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321515431 = 29 ⋅11086739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134515123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134515127) 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, 513286 + ... + 513547.

It is an arithmetic number, because the mean of its divisors is an integer number (33885522).

Almost surely, 2^134515123 is an apocalyptic number.

134515123 is a deficient number, since it is larger than the sum of its proper divisors (1026965).

134515123 is a wasteful number, since it uses less digits than its factorization.

134515123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026964.

The product of its digits is 1800, while the sum is 25.

The square root of 134515123 is about 11598.0654852436. The cubic root of 134515123 is about 512.3778783385.

The spelling of 134515123 in words is "one hundred thirty-four million, five hundred fifteen thousand, one hundred twenty-three".