144274399 has 2 divisors, whose sum is σ = 144274400. Its totient is φ = 144274398.

The previous prime is 144274387. The next prime is 144274439. The reversal of 144274399 is 993472441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144274399 - 2⁷ = 144274271 is a prime.

It is a super-2 number, since 2×144274399² = 41630204413622402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144274379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72137199 + 72137200.

It is an arithmetic number, because the mean of its divisors is an integer number (72137200).

Almost surely, 2^144274399 is an apocalyptic number.

144274399 is a deficient number, since it is larger than the sum of its proper divisors (1).

144274399 is an equidigital number, since it uses as much as digits as its factorization.

144274399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 144274399 is about 12011.4278501767. The cubic root of 144274399 is about 524.4809976022.

The spelling of 144274399 in words is "one hundred forty-four million, two hundred seventy-four thousand, three hundred ninety-nine".