144392417 has 12 divisors (see below), whose sum is σ = 157758444. Its totient is φ = 132088320.

The previous prime is 144392401. The next prime is 144392431. The reversal of 144392417 is 714293441.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 82156096 + 62236321 = 9064^2 + 7889^2 .

It is not a de Polignac number, because 144392417 - 2⁴ = 144392401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144392477) 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 11 ways as a sum of consecutive naturals, for example, 15317 + ... + 22877.

It is an arithmetic number, because the mean of its divisors is an integer number (13146537).

Almost surely, 2^144392417 is an apocalyptic number.

It is an amenable number.

144392417 is a deficient number, since it is larger than the sum of its proper divisors (13366027).

144392417 is a wasteful number, since it uses less digits than its factorization.

144392417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700 (or 7687 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 144392417 is about 12016.3395840830. The cubic root of 144392417 is about 524.6239689787.

The spelling of 144392417 in words is "one hundred forty-four million, three hundred ninety-two thousand, four hundred seventeen".