144015409 has 2 divisors, whose sum is σ = 144015410. Its totient is φ = 144015408.

The previous prime is 144015373. The next prime is 144015413. The reversal of 144015409 is 904510441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132319009 + 11696400 = 11503^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 144015409 - 2¹³ = 144007217 is a prime.

It is not a weakly prime, because it can be changed into another prime (144015419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72007704 + 72007705.

It is an arithmetic number, because the mean of its divisors is an integer number (72007705).

Almost surely, 2^144015409 is an apocalyptic number.

It is an amenable number.

144015409 is a deficient number, since it is larger than the sum of its proper divisors (1).

144015409 is an equidigital number, since it uses as much as digits as its factorization.

144015409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 144015409 is about 12000.6420244919. The cubic root of 144015409 is about 524.1669740102.

The spelling of 144015409 in words is "one hundred forty-four million, fifteen thousand, four hundred nine".