144523869 has 8 divisors (see below), whose sum is σ = 220226880. Its totient is φ = 82585056.

The previous prime is 144523843. The next prime is 144523879. The reversal of 144523869 is 968325441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144523869 - 2⁷ = 144523741 is a prime.

It is a super-2 number, since 2×144523869² = 41774297421458322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144523869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144523879) 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 7 ways as a sum of consecutive naturals, for example, 3441024 + ... + 3441065.

It is an arithmetic number, because the mean of its divisors is an integer number (27528360).

Almost surely, 2^144523869 is an apocalyptic number.

It is an amenable number.

144523869 is a deficient number, since it is larger than the sum of its proper divisors (75703011).

144523869 is an equidigital number, since it uses as much as digits as its factorization.

144523869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6882099.

The product of its digits is 207360, while the sum is 42.

The square root of 144523869 is about 12021.8080586907. The cubic root of 144523869 is about 524.7831231192.

The spelling of 144523869 in words is "one hundred forty-four million, five hundred twenty-three thousand, eight hundred sixty-nine".