134617455021 has 16 divisors (see below), whose sum is σ = 214050115584. Its totient is φ = 73579726704.

The previous prime is 134617455017. The next prime is 134617455029. The reversal of 134617455021 is 120554716431.

It is not a de Polignac number, because 134617455021 - 2² = 134617455017 is a prime.

It is a super-2 number, since 2×134617455021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134617455029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139355061 + ... + 139356026.

It is an arithmetic number, because the mean of its divisors is an integer number (13378132224).

Almost surely, 2^134617455021 is an apocalyptic number.

It is an amenable number.

134617455021 is a deficient number, since it is larger than the sum of its proper divisors (79432660563).

134617455021 is a wasteful number, since it uses less digits than its factorization.

134617455021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278711120.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 134617455021 in words is "one hundred thirty-four billion, six hundred seventeen million, four hundred fifty-five thousand, twenty-one".