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123141 = 341047
BaseRepresentation
bin11110000100000101
320020220210
4132010011
512420031
62350033
71022004
oct360405
9206823
10123141
1184577
125b319
1344085
1432c3b
1526746
hex1e105

123141 has 4 divisors (see below), whose sum is σ = 164192. Its totient is φ = 82092.

The previous prime is 123127. The next prime is 123143. The reversal of 123141 is 141321.

It is a happy number.

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 not a de Polignac number, because 123141 - 26 = 123077 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20521 + ... + 20526.

It is an arithmetic number, because the mean of its divisors is an integer number (41048).

2123141 is an apocalyptic number.

It is an amenable number.

123141 is a deficient number, since it is larger than the sum of its proper divisors (41051).

123141 is an equidigital number, since it uses as much as digits as its factorization.

123141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41050.

The product of its digits is 24, while the sum is 12.

The square root of 123141 is about 350.9145195058. The cubic root of 123141 is about 49.7508943216.

Adding to 123141 its reverse (141321), we get a palindrome (264462).

The spelling of 123141 in words is "one hundred twenty-three thousand, one hundred forty-one", and thus it is an iban number.

Divisors: 1 3 41047 123141