144553477 has 2 divisors, whose sum is σ = 144553478. Its totient is φ = 144553476.

The previous prime is 144553457. The next prime is 144553483. The reversal of 144553477 is 774355441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140920641 + 3632836 = 11871^2 + 1906^2 .

It is a cyclic number.

It is not a de Polignac number, because 144553477 - 2¹⁵ = 144520709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144553427) 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, 72276738 + 72276739.

It is an arithmetic number, because the mean of its divisors is an integer number (72276739).

Almost surely, 2^144553477 is an apocalyptic number.

It is an amenable number.

144553477 is a deficient number, since it is larger than the sum of its proper divisors (1).

144553477 is an equidigital number, since it uses as much as digits as its factorization.

144553477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235200, while the sum is 40.

The square root of 144553477 is about 12023.0394243719. The cubic root of 144553477 is about 524.8189573794.

The spelling of 144553477 in words is "one hundred forty-four million, five hundred fifty-three thousand, four hundred seventy-seven".