144801477 has 12 divisors (see below), whose sum is σ = 211010124. Its totient is φ = 95679360.

The previous prime is 144801457. The next prime is 144801523. The reversal of 144801477 is 774108441.

144801477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29582721 + 115218756 = 5439^2 + 10734^2 .

It is not a de Polignac number, because 144801477 - 2¹⁸ = 144539333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144801457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70174 + ... + 72207.

It is an arithmetic number, because the mean of its divisors is an integer number (17584177).

Almost surely, 2^144801477 is an apocalyptic number.

It is an amenable number.

144801477 is a deficient number, since it is larger than the sum of its proper divisors (66208647).

144801477 is a wasteful number, since it uses less digits than its factorization.

144801477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142500 (or 142497 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 144801477 is about 12033.3485364632. The cubic root of 144801477 is about 525.1189172798.

The spelling of 144801477 in words is "one hundred forty-four million, eight hundred one thousand, four hundred seventy-seven".