144493247 has 2 divisors, whose sum is σ = 144493248. Its totient is φ = 144493246.

The previous prime is 144493171. The next prime is 144493273. The reversal of 144493247 is 742394441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144493247 - 2¹⁶ = 144427711 is a prime.

It is a super-3 number, since 3×144493247³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144493247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144492247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72246623 + 72246624.

It is an arithmetic number, because the mean of its divisors is an integer number (72246624).

Almost surely, 2^144493247 is an apocalyptic number.

144493247 is a deficient number, since it is larger than the sum of its proper divisors (1).

144493247 is an equidigital number, since it uses as much as digits as its factorization.

144493247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 38.

The square root of 144493247 is about 12020.5343891193. The cubic root of 144493247 is about 524.7460564763.

The spelling of 144493247 in words is "one hundred forty-four million, four hundred ninety-three thousand, two hundred forty-seven".