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144145135 = 5416111527
BaseRepresentation
bin10001001011101…
…11101011101111
3101001020022221201
420211313223233
5243400121020
622145310331
73400133131
oct1045675357
9331208851
10144145135
1174403412
12403353a7
1323b2bca4
1415203051
15c9c4a0a
hex8977aef

144145135 has 16 divisors (see below), whose sum is σ = 180113472. Its totient is φ = 110649600.

The previous prime is 144145129. The next prime is 144145139. The reversal of 144145135 is 531541441.

It is not a de Polignac number, because 144145135 - 223 = 135756527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144145139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6742 + ... + 18268.

It is an arithmetic number, because the mean of its divisors is an integer number (11257092).

Almost surely, 2144145135 is an apocalyptic number.

144145135 is a deficient number, since it is larger than the sum of its proper divisors (35968337).

144145135 is a wasteful number, since it uses less digits than its factorization.

144145135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11634.

The product of its digits is 4800, while the sum is 28.

The square root of 144145135 is about 12006.0457686950. The cubic root of 144145135 is about 524.3243129100.

Adding to 144145135 its reverse (531541441), we get a palindrome (675686576).

The spelling of 144145135 in words is "one hundred forty-four million, one hundred forty-five thousand, one hundred thirty-five".

Divisors: 1 5 41 61 205 305 2501 11527 12505 57635 472607 703147 2363035 3515735 28829027 144145135