144186514909 has 2 divisors, whose sum is σ = 144186514910. Its totient is φ = 144186514908.

The previous prime is 144186514853. The next prime is 144186514921. The reversal of 144186514909 is 909415681441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143146452409 + 1040062500 = 378347^2 + 32250^2 .

It is a cyclic number.

It is not a de Polignac number, because 144186514909 - 2³⁷ = 6747561437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144186514009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72093257454 + 72093257455.

It is an arithmetic number, because the mean of its divisors is an integer number (72093257455).

Almost surely, 2^144186514909 is an apocalyptic number.

It is an amenable number.

144186514909 is a deficient number, since it is larger than the sum of its proper divisors (1).

144186514909 is an equidigital number, since it uses as much as digits as its factorization.

144186514909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 144186514909 in words is "one hundred forty-four billion, one hundred eighty-six million, five hundred fourteen thousand, nine hundred nine".