144145039 has 4 divisors (see below), whose sum is σ = 151731640. Its totient is φ = 136558440.

The previous prime is 144144977. The next prime is 144145061. The reversal of 144145039 is 930541441.

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 144145039 - 2¹¹ = 144142991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144145039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144145069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3793272 + ... + 3793309.

It is an arithmetic number, because the mean of its divisors is an integer number (37932910).

Almost surely, 2^144145039 is an apocalyptic number.

144145039 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

144145039 is a deficient number, since it is larger than the sum of its proper divisors (7586601).

144145039 is an equidigital number, since it uses as much as digits as its factorization.

144145039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586600.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 144145039 is about 12006.0417707086. The cubic root of 144145039 is about 524.3241965108.

The spelling of 144145039 in words is "one hundred forty-four million, one hundred forty-five thousand, thirty-nine".