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144131121 = 3231516599
BaseRepresentation
bin10001001011101…
…00010000110001
3101001012121201200
420211310100301
5243344143441
622145121413
73400044231
oct1045642061
9331177650
10144131121
11743a3932
1240329269
1323b257b4
14151dbcc1
15c9c07b6
hex8974431

144131121 has 12 divisors (see below), whose sum is σ = 214905600. Its totient is φ = 92987640.

The previous prime is 144131111. The next prime is 144131149. The reversal of 144131121 is 121131441.

It is not a de Polignac number, because 144131121 - 25 = 144131089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144131094 and 144131103.

It is not an unprimeable number, because it can be changed into a prime (144131111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258021 + ... + 258578.

It is an arithmetic number, because the mean of its divisors is an integer number (17908800).

Almost surely, 2144131121 is an apocalyptic number.

It is an amenable number.

144131121 is a deficient number, since it is larger than the sum of its proper divisors (70774479).

144131121 is a wasteful number, since it uses less digits than its factorization.

144131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516636 (or 516633 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 144131121 is about 12005.4621318798. The cubic root of 144131121 is about 524.3073205015.

Adding to 144131121 its reverse (121131441), we get a palindrome (265262562).

The spelling of 144131121 in words is "one hundred forty-four million, one hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 3 9 31 93 279 516599 1549797 4649391 16014569 48043707 144131121