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134431 = 113101
BaseRepresentation
bin100000110100011111
320211101221
4200310133
513300211
62514211
71066633
oct406437
9224357
10134431
1192000
1265967
134925b
1436dc3
1529c71
hex20d1f

134431 has 8 divisors (see below), whose sum is σ = 149328. Its totient is φ = 121000.

The previous prime is 134417. The next prime is 134437.

134431 is nontrivially palindromic in base 10.

134431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 134431 - 25 = 134399 is a prime.

It is a super-2 number, since 2×1344312 = 36143387522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134437) 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, 1281 + ... + 1381.

It is an arithmetic number, because the mean of its divisors is an integer number (18666).

2134431 is an apocalyptic number.

134431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

134431 is a deficient number, since it is larger than the sum of its proper divisors (14897).

134431 is an equidigital number, since it uses as much as digits as its factorization.

134431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 112 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 134431 is about 366.6483328750. The cubic root of 134431 is about 51.2271045858.

It can be divided in two parts, 134 and 431, that added together give a palindrome (565).

The spelling of 134431 in words is "one hundred thirty-four thousand, four hundred thirty-one".

Divisors: 1 11 101 121 1111 1331 12221 134431