144378513 has 6 divisors (see below), whose sum is σ = 208546754. Its totient is φ = 96252336.

The previous prime is 144378503. The next prime is 144378523. The reversal of 144378513 is 315873441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144378503) and next prime (144378523).

It can be written as a sum of positive squares in only one way, i.e., 84052224 + 60326289 = 9168^2 + 7767^2 .

It is not a de Polignac number, because 144378513 - 2⁸ = 144378257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144378503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8021020 + ... + 8021037.

Almost surely, 2^144378513 is an apocalyptic number.

It is an amenable number.

144378513 is a deficient number, since it is larger than the sum of its proper divisors (64168241).

144378513 is a wasteful number, since it uses less digits than its factorization.

144378513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16042063 (or 16042060 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 144378513 is about 12015.7610245877. The cubic root of 144378513 is about 524.6071292074.

The spelling of 144378513 in words is "one hundred forty-four million, three hundred seventy-eight thousand, five hundred thirteen".