144247497 has 16 divisors (see below), whose sum is σ = 198013440. Its totient is φ = 93336192.

The previous prime is 144247463. The next prime is 144247501. The reversal of 144247497 is 794742441.

It is not a de Polignac number, because 144247497 - 2²³ = 135858889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144247447) 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 15 ways as a sum of consecutive naturals, for example, 51813 + ... + 54525.

It is an arithmetic number, because the mean of its divisors is an integer number (12375840).

Almost surely, 2^144247497 is an apocalyptic number.

It is an amenable number.

144247497 is a deficient number, since it is larger than the sum of its proper divisors (53765943).

144247497 is a wasteful number, since it uses less digits than its factorization.

144247497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232.

The product of its digits is 225792, while the sum is 42.

The square root of 144247497 is about 12010.3079477589. The cubic root of 144247497 is about 524.4483966118.

The spelling of 144247497 in words is "one hundred forty-four million, two hundred forty-seven thousand, four hundred ninety-seven".