134654572121 has 8 divisors (see below), whose sum is σ = 134760797160. Its totient is φ = 134548388352.

The previous prime is 134654572049. The next prime is 134654572177. The reversal of 134654572121 is 121275456431.

It can be written as a sum of positive squares in 4 ways, for example, as 87636721225 + 47017850896 = 296035^2 + 216836^2 .

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 134654572121 - 2²² = 134650377817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134654572021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9958061 + ... + 9971573.

It is an arithmetic number, because the mean of its divisors is an integer number (16845099645).

Almost surely, 2^134654572121 is an apocalyptic number.

It is an amenable number.

134654572121 is a deficient number, since it is larger than the sum of its proper divisors (106225039).

134654572121 is a wasteful number, since it uses less digits than its factorization.

134654572121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20635.

The product of its digits is 201600, while the sum is 41.

The spelling of 134654572121 in words is "one hundred thirty-four billion, six hundred fifty-four million, five hundred seventy-two thousand, one hundred twenty-one".