144065139 has 8 divisors (see below), whose sum is σ = 192219072. Its totient is φ = 95977320.

The previous prime is 144065113. The next prime is 144065147. The reversal of 144065139 is 931560441.

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

It is not a de Polignac number, because 144065139 - 2⁸ = 144064883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144065149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11197 + ... + 20334.

It is an arithmetic number, because the mean of its divisors is an integer number (24027384).

Almost surely, 2^144065139 is an apocalyptic number.

144065139 is a deficient number, since it is larger than the sum of its proper divisors (48153933).

144065139 is a wasteful number, since it uses less digits than its factorization.

144065139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33057.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 144065139 is about 12002.7138181330. The cubic root of 144065139 is about 524.2273004803.

The spelling of 144065139 in words is "one hundred forty-four million, sixty-five thousand, one hundred thirty-nine".