144367231 has 2 divisors, whose sum is σ = 144367232. Its totient is φ = 144367230.

The previous prime is 144367219. The next prime is 144367241. The reversal of 144367231 is 132763441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144367231 - 2¹¹ = 144365183 is a prime.

It is a super-2 number, since 2×144367231² = 41683794773214722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144367193 and 144367202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144367241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72183615 + 72183616.

It is an arithmetic number, because the mean of its divisors is an integer number (72183616).

Almost surely, 2^144367231 is an apocalyptic number.

144367231 is a deficient number, since it is larger than the sum of its proper divisors (1).

144367231 is an equidigital number, since it uses as much as digits as its factorization.

144367231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 144367231 is about 12015.2915486891. The cubic root of 144367231 is about 524.5934642659.

The spelling of 144367231 in words is "one hundred forty-four million, three hundred sixty-seven thousand, two hundred thirty-one".