144923459 has 4 divisors (see below), whose sum is σ = 148293816. Its totient is φ = 141553104.

The previous prime is 144923447. The next prime is 144923461. The reversal of 144923459 is 954329441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144923459 - 2²⁴ = 128146243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144923489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685114 + ... + 1685199.

It is an arithmetic number, because the mean of its divisors is an integer number (37073454).

Almost surely, 2^144923459 is an apocalyptic number.

144923459 is a deficient number, since it is larger than the sum of its proper divisors (3370357).

144923459 is an equidigital number, since it uses as much as digits as its factorization.

144923459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370356.

The product of its digits is 155520, while the sum is 41.

The square root of 144923459 is about 12038.4159672276. The cubic root of 144923459 is about 525.2663307792.

The spelling of 144923459 in words is "one hundred forty-four million, nine hundred twenty-three thousand, four hundred fifty-nine".