144552231 has 12 divisors (see below), whose sum is σ = 208988208. Its totient is φ = 96280224.

The previous prime is 144552227. The next prime is 144552257. The reversal of 144552231 is 132255441.

144552231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144552231 - 2² = 144552227 is a prime.

It is a super-2 number, since 2×144552231² = 41790694974154722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144552195 and 144552204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144552271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4006 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (17415684).

Almost surely, 2^144552231 is an apocalyptic number.

144552231 is a deficient number, since it is larger than the sum of its proper divisors (64435977).

144552231 is a wasteful number, since it uses less digits than its factorization.

144552231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14662 (or 14659 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 144552231 is about 12022.9876070800. The cubic root of 144552231 is about 524.8174494569.

The spelling of 144552231 in words is "one hundred forty-four million, five hundred fifty-two thousand, two hundred thirty-one".