134564215473 has 6 divisors (see below), whose sum is σ = 194370533474. Its totient is φ = 89709476976.

The previous prime is 134564215397. The next prime is 134564215481. The reversal of 134564215473 is 374512465431.

134564215473 is a `hidden beast` number, since 1 + 3 + 4 + 564 + 2 + 15 + 4 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 127955013264 + 6609202209 = 357708^2 + 81297^2 .

It is not a de Polignac number, because 134564215473 - 2²⁰ = 134563166897 is a prime.

It is a super-2 number, since 2×134564215473² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134564215273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7475789740 + ... + 7475789757.

Almost surely, 2^134564215473 is an apocalyptic number.

It is an amenable number.

134564215473 is a deficient number, since it is larger than the sum of its proper divisors (59806318001).

134564215473 is a wasteful number, since it uses less digits than its factorization.

134564215473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14951579503 (or 14951579500 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 134564215473 in words is "one hundred thirty-four billion, five hundred sixty-four million, two hundred fifteen thousand, four hundred seventy-three".