144819764 has 12 divisors (see below), whose sum is σ = 253649088. Its totient is φ = 72348600.

The previous prime is 144819761. The next prime is 144819769. The reversal of 144819764 is 467918441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144819761) 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 3 ways as a sum of consecutive naturals, for example, 9782 + ... + 19629.

It is an arithmetic number, because the mean of its divisors is an integer number (21137424).

Almost surely, 2^144819764 is an apocalyptic number.

It is an amenable number.

144819764 is a deficient number, since it is larger than the sum of its proper divisors (108829324).

144819764 is a wasteful number, since it uses less digits than its factorization.

144819764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30646 (or 30644 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 144819764 is about 12034.1083591598. The cubic root of 144819764 is about 525.1410221313.

It can be divided in two parts, 1448 and 19764, that added together give a palindrome (21212).

The spelling of 144819764 in words is "one hundred forty-four million, eight hundred nineteen thousand, seven hundred sixty-four".