144104639 has 6 divisors (see below), whose sum is σ = 167631984. Its totient is φ = 123518220.

The previous prime is 144104633. The next prime is 144104641. The reversal of 144104639 is 936401441.

It is a happy number.

It is not a de Polignac number, because 144104639 - 2²⁴ = 127327423 is a prime.

It is a super-2 number, since 2×144104639² = 41532293962640642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144104633) 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 in 5 ways as a sum of consecutive naturals, for example, 1470407 + ... + 1470504.

It is an arithmetic number, because the mean of its divisors is an integer number (27938664).

Almost surely, 2^144104639 is an apocalyptic number.

144104639 is a deficient number, since it is larger than the sum of its proper divisors (23527345).

144104639 is an equidigital number, since it uses as much as digits as its factorization.

144104639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940925 (or 2940918 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 144104639 is about 12004.3591665695. The cubic root of 144104639 is about 524.2752072497.

The spelling of 144104639 in words is "one hundred forty-four million, one hundred four thousand, six hundred thirty-nine".