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134281 = 719183
BaseRepresentation
bin100000110010001001
320211012101
4200302021
513244111
62513401
71066330
oct406211
9224171
10134281
1191984
1265861
1349174
1436d17
1529bc1
hex20c89

134281 has 4 divisors (see below), whose sum is σ = 153472. Its totient is φ = 115092.

The previous prime is 134269. The next prime is 134287. The reversal of 134281 is 182431.

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.

It is a cyclic number.

It is not a de Polignac number, because 134281 - 27 = 134153 is a prime.

It is a super-2 number, since 2×1342812 = 36062773922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134287) 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, 9585 + ... + 9598.

It is an arithmetic number, because the mean of its divisors is an integer number (38368).

2134281 is an apocalyptic number.

It is an amenable number.

134281 is a deficient number, since it is larger than the sum of its proper divisors (19191).

134281 is an equidigital number, since it uses as much as digits as its factorization.

134281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19190.

The product of its digits is 192, while the sum is 19.

The square root of 134281 is about 366.4437200990. The cubic root of 134281 is about 51.2080441869.

The spelling of 134281 in words is "one hundred thirty-four thousand, two hundred eighty-one".

Divisors: 1 7 19183 134281