144235566 has 28 divisors (see below), whose sum is σ = 324384912. Its totient is φ = 48078036.

The previous prime is 144235561. The next prime is 144235601. The reversal of 144235566 is 665532441.

It is a self number, because there is not a number n which added to its sum of digits gives 144235566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144235561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 48006 + ... + 50921.

Almost surely, 2^144235566 is an apocalyptic number.

144235566 is an abundant number, since it is smaller than the sum of its proper divisors (180149346).

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

144235566 is an frugal number, since it uses more digits than its factorization.

144235566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98947 (or 98932 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 144235566 is about 12009.8112391494. The cubic root of 144235566 is about 524.4339368200.

The spelling of 144235566 in words is "one hundred forty-four million, two hundred thirty-five thousand, five hundred sixty-six".