144387923 has 2 divisors, whose sum is σ = 144387924. Its totient is φ = 144387922.

The previous prime is 144387913. The next prime is 144387959. The reversal of 144387923 is 329783441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144387923 - 2⁴ = 144387907 is a prime.

It is not a weakly prime, because it can be changed into another prime (144387913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72193961 + 72193962.

It is an arithmetic number, because the mean of its divisors is an integer number (72193962).

Almost surely, 2^144387923 is an apocalyptic number.

144387923 is a deficient number, since it is larger than the sum of its proper divisors (1).

144387923 is an equidigital number, since it uses as much as digits as its factorization.

144387923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 144387923 is about 12016.1525872469. The cubic root of 144387923 is about 524.6185262077.

The spelling of 144387923 in words is "one hundred forty-four million, three hundred eighty-seven thousand, nine hundred twenty-three".