Search a number
-
+
144888187 is a prime number
BaseRepresentation
bin10001010001011…
…01000101111011
3101002122002020011
420220231011323
5244042410222
622213242351
73406346353
oct1050550573
9332562204
10144888187
1174870704
12406333b7
132402c272
1415357b63
15cabec77
hex8a2d17b

144888187 has 2 divisors, whose sum is σ = 144888188. Its totient is φ = 144888186.

The previous prime is 144888157. The next prime is 144888197. The reversal of 144888187 is 781888441.

144888187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144888187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144888187.

It is not a weakly prime, because it can be changed into another prime (144888157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72444093 + 72444094.

It is an arithmetic number, because the mean of its divisors is an integer number (72444094).

Almost surely, 2144888187 is an apocalyptic number.

144888187 is a deficient number, since it is larger than the sum of its proper divisors (1).

144888187 is an equidigital number, since it uses as much as digits as its factorization.

144888187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 458752, while the sum is 49.

The square root of 144888187 is about 12036.9509012873. The cubic root of 144888187 is about 525.2237135765.

The spelling of 144888187 in words is "one hundred forty-four million, eight hundred eighty-eight thousand, one hundred eighty-seven".