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134457 = 344819
BaseRepresentation
bin100000110100111001
320211102220
4200310321
513300312
62514253
71100001
oct406471
9224386
10134457
1192024
1265989
134927b
1437001
1529c8c
hex20d39

134457 has 4 divisors (see below), whose sum is σ = 179280. Its totient is φ = 89636.

The previous prime is 134443. The next prime is 134471. The reversal of 134457 is 754431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 754431 = 3251477.

It is an interprime number because it is at equal distance from previous prime (134443) and next prime (134471).

It is a cyclic number.

It is not a de Polignac number, because 134457 - 211 = 132409 is a prime.

It is a D-number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (134417) 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, 22407 + ... + 22412.

It is an arithmetic number, because the mean of its divisors is an integer number (44820).

134457 is a Friedman number, since it can be written as (4+(7*(3-1))^5)/4, using all its digits and the basic arithmetic operations.

2134457 is an apocalyptic number.

It is an amenable number.

134457 is a deficient number, since it is larger than the sum of its proper divisors (44823).

134457 is an equidigital number, since it uses as much as digits as its factorization.

134457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822.

The product of its digits is 1680, while the sum is 24.

The square root of 134457 is about 366.6837874791. The cubic root of 134457 is about 51.2304069463.

Adding to 134457 its reverse (754431), we get a palindrome (888888).

The spelling of 134457 in words is "one hundred thirty-four thousand, four hundred fifty-seven".

Divisors: 1 3 44819 134457