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144887 is a prime number
BaseRepresentation
bin100011010111110111
321100202012
4203113313
514114022
63034435
71142261
oct432767
9240665
10144887
1199946
126ba1b
1350c42
143ab31
152cde2
hex235f7

144887 has 2 divisors, whose sum is σ = 144888. Its totient is φ = 144886.

The previous prime is 144883. The next prime is 144889. The reversal of 144887 is 788441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144887 - 22 = 144883 is a prime.

Together with 144889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144887.

It is not a weakly prime, because it can be changed into another prime (144883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72443 + 72444.

It is an arithmetic number, because the mean of its divisors is an integer number (72444).

2144887 is an apocalyptic number.

144887 is a deficient number, since it is larger than the sum of its proper divisors (1).

144887 is an equidigital number, since it uses as much as digits as its factorization.

144887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 32.

The square root of 144887 is about 380.6402501050. The cubic root of 144887 is about 52.5222279270.

The spelling of 144887 in words is "one hundred forty-four thousand, eight hundred eighty-seven".