144797472 has 36 divisors (see below), whose sum is σ = 411768630. Its totient is φ = 48265728.

The previous prime is 144797447. The next prime is 144797473. The reversal of 144797472 is 274797441.

It can be written as a sum of positive squares in only one way, i.e., 95179536 + 49617936 = 9756^2 + 7044^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144797473) 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, 251097 + ... + 251672.

Almost surely, 2^144797472 is an apocalyptic number.

144797472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144797472 is an abundant number, since it is smaller than the sum of its proper divisors (266971158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144797472 is a wasteful number, since it uses less digits than its factorization.

144797472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502785 (or 502774 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 144797472 is about 12033.1821227803. The cubic root of 144797472 is about 525.1140758912.

The spelling of 144797472 in words is "one hundred forty-four million, seven hundred ninety-seven thousand, four hundred seventy-two".