144521291 has 2 divisors, whose sum is σ = 144521292. Its totient is φ = 144521290.

The previous prime is 144521263. The next prime is 144521309. The reversal of 144521291 is 192125441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144521291 - 2⁶ = 144521227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144521191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72260645 + 72260646.

It is an arithmetic number, because the mean of its divisors is an integer number (72260646).

Almost surely, 2^144521291 is an apocalyptic number.

144521291 is a deficient number, since it is larger than the sum of its proper divisors (1).

144521291 is an equidigital number, since it uses as much as digits as its factorization.

144521291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 144521291 is about 12021.7008364041. The cubic root of 144521291 is about 524.7800027605.

The spelling of 144521291 in words is "one hundred forty-four million, five hundred twenty-one thousand, two hundred ninety-one".