134555431 has 4 divisors (see below), whose sum is σ = 134701200. Its totient is φ = 134409664.

The previous prime is 134555417. The next prime is 134555441.

134555431 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134555431 - 2²³ = 126166823 is a prime.

It is a super-2 number, since 2×134555431² = 36210328023191522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134555393 and 134555402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134555401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71491 + ... + 73348.

It is an arithmetic number, because the mean of its divisors is an integer number (33675300).

Almost surely, 2^134555431 is an apocalyptic number.

134555431 is a deficient number, since it is larger than the sum of its proper divisors (145769).

134555431 is an equidigital number, since it uses as much as digits as its factorization.

134555431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145768.

The product of its digits is 18000, while the sum is 31.

The square root of 134555431 is about 11599.8030586730. The cubic root of 134555431 is about 512.4290519277.

The spelling of 134555431 in words is "one hundred thirty-four million, five hundred fifty-five thousand, four hundred thirty-one".