144553841 has 2 divisors, whose sum is σ = 144553842. Its totient is φ = 144553840.

The previous prime is 144553819. The next prime is 144553847. The reversal of 144553841 is 148355441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144480400 + 73441 = 12020^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 144553841 - 2²⁶ = 77444977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144553847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72276920 + 72276921.

It is an arithmetic number, because the mean of its divisors is an integer number (72276921).

Almost surely, 2^144553841 is an apocalyptic number.

It is an amenable number.

144553841 is a deficient number, since it is larger than the sum of its proper divisors (1).

144553841 is an equidigital number, since it uses as much as digits as its factorization.

144553841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 35.

The square root of 144553841 is about 12023.0545619655. The cubic root of 144553841 is about 524.8193978944.

Subtracting from 144553841 its product of digits (38400), we obtain a palindrome (144515441).

The spelling of 144553841 in words is "one hundred forty-four million, five hundred fifty-three thousand, eight hundred forty-one".