144225461 has 2 divisors, whose sum is σ = 144225462. Its totient is φ = 144225460.

The previous prime is 144225401. The next prime is 144225493. The reversal of 144225461 is 164522441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122788561 + 21436900 = 11081^2 + 4630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144225461 is a prime.

It is equal to p_8137460 and since 144225461 and 8137460 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144225401) 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, 72112730 + 72112731.

It is an arithmetic number, because the mean of its divisors is an integer number (72112731).

Almost surely, 2^144225461 is an apocalyptic number.

It is an amenable number.

144225461 is a deficient number, since it is larger than the sum of its proper divisors (1).

144225461 is an equidigital number, since it uses as much as digits as its factorization.

144225461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 29.

The square root of 144225461 is about 12009.3905340779. The cubic root of 144225461 is about 524.4216894277.

The spelling of 144225461 in words is "one hundred forty-four million, two hundred twenty-five thousand, four hundred sixty-one".