134565431 has 40 divisors (see below), whose sum is σ = 183983520. Its totient is φ = 95832000.

The previous prime is 134565401. The next prime is 134565437.

134565431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 134565431 - 2¹⁸ = 134303287 is a prime.

It is a super-2 number, since 2×134565431² = 36215710440431522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134565437) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1332281 + ... + 1332381.

It is an arithmetic number, because the mean of its divisors is an integer number (4599588).

Almost surely, 2^134565431 is an apocalyptic number.

134565431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

134565431 is a deficient number, since it is larger than the sum of its proper divisors (49418089).

134565431 is an equidigital number, since it uses as much as digits as its factorization.

134565431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 132 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 134565431 is about 11600.2340924655. The cubic root of 134565431 is about 512.4417459863.

It can be divided in two parts, 134 and 565431, that added together give a palindrome (565565).

The spelling of 134565431 in words is "one hundred thirty-four million, five hundred sixty-five thousand, four hundred thirty-one".