Search a number
144204139 is a prime number
BaseRepresentation
bin10001001100001…
…10000101101011
3101001100022220001
420212012011223
5243404013024
622150443431
73400500142
oct1046060553
9331308801
10144204139
1174443782
1240363577
1323b4cac1
141521a759
15c9d7244
hex898616b

144204139 has 2 divisors, whose sum is σ = 144204140. Its totient is φ = 144204138.

The previous prime is 144204121. The next prime is 144204163. The reversal of 144204139 is 931402441.

It is a weak prime.

It is an emirp because it is prime and its reverse (931402441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144204139 - 223 = 135815531 is a prime.

It is not a weakly prime, because it can be changed into another prime (144204199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72102069 + 72102070.

It is an arithmetic number, because the mean of its divisors is an integer number (72102070).

Almost surely, 2144204139 is an apocalyptic number.

144204139 is a deficient number, since it is larger than the sum of its proper divisors (1).

144204139 is an equidigital number, since it uses as much as digits as its factorization.

144204139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 144204139 is about 12008.5027792810. The cubic root of 144204139 is about 524.3958450073.

The spelling of 144204139 in words is "one hundred forty-four million, two hundred four thousand, one hundred thirty-nine".