144531224 has 8 divisors (see below), whose sum is σ = 270996060. Its totient is φ = 72265608.

The previous prime is 144531209. The next prime is 144531239. The reversal of 144531224 is 422135441.

144531224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144531209) and next prime (144531239).

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 144531193 and 144531202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033194 + ... + 9033209.

Almost surely, 2^144531224 is an apocalyptic number.

It is an amenable number.

144531224 is a deficient number, since it is larger than the sum of its proper divisors (126464836).

144531224 is a wasteful number, since it uses less digits than its factorization.

144531224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066409 (or 18066405 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 144531224 is about 12022.1139572040. The cubic root of 144531224 is about 524.7920252574.

Adding to 144531224 its reverse (422135441), we get a palindrome (566666665).

The spelling of 144531224 in words is "one hundred forty-four million, five hundred thirty-one thousand, two hundred twenty-four".