144573461 has 2 divisors, whose sum is σ = 144573462. Its totient is φ = 144573460.

The previous prime is 144573449. The next prime is 144573463. The reversal of 144573461 is 164375441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95433361 + 49140100 = 9769^2 + 7010^2 .

It is a cyclic number.

It is not a de Polignac number, because 144573461 - 2²² = 140379157 is a prime.

Together with 144573463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144573463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72286730 + 72286731.

It is an arithmetic number, because the mean of its divisors is an integer number (72286731).

Almost surely, 2^144573461 is an apocalyptic number.

It is an amenable number.

144573461 is a deficient number, since it is larger than the sum of its proper divisors (1).

144573461 is an equidigital number, since it uses as much as digits as its factorization.

144573461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 144573461 is about 12023.8704667008. The cubic root of 144573461 is about 524.8431410448.

The spelling of 144573461 in words is "one hundred forty-four million, five hundred seventy-three thousand, four hundred sixty-one".