134552636431 has 4 divisors (see below), whose sum is σ = 134554410592. Its totient is φ = 134550862272.

The previous prime is 134552636429. The next prime is 134552636447. The reversal of 134552636431 is 134636255431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134636255431 = 113 ⋅1191471287.

It is a cyclic number.

It is not a de Polignac number, because 134552636431 - 2¹ = 134552636429 is a prime.

It is a super-2 number, since 2×134552636431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134552636401) 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, 767991 + ... + 926776.

It is an arithmetic number, because the mean of its divisors is an integer number (33638602648).

Almost surely, 2^134552636431 is an apocalyptic number.

134552636431 is a deficient number, since it is larger than the sum of its proper divisors (1774161).

134552636431 is an equidigital number, since it uses as much as digits as its factorization.

134552636431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774160.

The product of its digits is 777600, while the sum is 43.

The spelling of 134552636431 in words is "one hundred thirty-four billion, five hundred fifty-two million, six hundred thirty-six thousand, four hundred thirty-one".