144261632 has 20 divisors (see below), whose sum is σ = 288242526. Its totient is φ = 72130560.

The previous prime is 144261619. The next prime is 144261641. The reversal of 144261632 is 236162441.

It can be written as a sum of positive squares in only one way, i.e., 133079296 + 11182336 = 11536^2 + 3344^2 .

It is a super-2 number, since 2×144261632² = 41622836934606848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144261595 and 144261604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140369 + ... + 141392.

Almost surely, 2^144261632 is an apocalyptic number.

It is an amenable number.

144261632 is a deficient number, since it is larger than the sum of its proper divisors (143980894).

144261632 is an frugal number, since it uses more digits than its factorization.

144261632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281779 (or 281763 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 144261632 is about 12010.8963861987. The cubic root of 144261632 is about 524.4655265127.

The spelling of 144261632 in words is "one hundred forty-four million, two hundred sixty-one thousand, six hundred thirty-two".