144564473 has 2 divisors, whose sum is σ = 144564474. Its totient is φ = 144564472.

The previous prime is 144564451. The next prime is 144564487. The reversal of 144564473 is 374465441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102677689 + 41886784 = 10133^2 + 6472^2 .

It is a cyclic number.

It is not a de Polignac number, because 144564473 - 2²² = 140370169 is a prime.

It is not a weakly prime, because it can be changed into another prime (144564373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72282236 + 72282237.

It is an arithmetic number, because the mean of its divisors is an integer number (72282237).

Almost surely, 2^144564473 is an apocalyptic number.

It is an amenable number.

144564473 is a deficient number, since it is larger than the sum of its proper divisors (1).

144564473 is an equidigital number, since it uses as much as digits as its factorization.

144564473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The square root of 144564473 is about 12023.4967043702. The cubic root of 144564473 is about 524.8322644798.

The spelling of 144564473 in words is "one hundred forty-four million, five hundred sixty-four thousand, four hundred seventy-three".