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134149 = 163823
BaseRepresentation
bin100000110000000101
320211000111
4200300011
513243044
62513021
71066051
oct406005
9224014
10134149
1191874
1265771
13490a2
1436c61
1529b34
hex20c05

134149 has 4 divisors (see below), whose sum is σ = 135136. Its totient is φ = 133164.

The previous prime is 134129. The next prime is 134153. The reversal of 134149 is 941431.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 941431 = 1949549.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-134149 is a prime.

It is an Ulam number.

It is a Duffinian number.

134149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249 + ... + 574.

It is an arithmetic number, because the mean of its divisors is an integer number (33784).

2134149 is an apocalyptic number.

It is an amenable number.

134149 is a deficient number, since it is larger than the sum of its proper divisors (987).

134149 is an equidigital number, since it uses as much as digits as its factorization.

134149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 432, while the sum is 22.

The square root of 134149 is about 366.2635663016. The cubic root of 134149 is about 51.1912592908.

The spelling of 134149 in words is "one hundred thirty-four thousand, one hundred forty-nine".

Divisors: 1 163 823 134149