144369139 has 8 divisors (see below), whose sum is σ = 150348672. Its totient is φ = 138472320.

The previous prime is 144369133. The next prime is 144369167. The reversal of 144369139 is 931963441.

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

It is a cyclic number.

It is not a de Polignac number, because 144369139 - 2³ = 144369131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144369131) 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, 17104 + ... + 24109.

It is an arithmetic number, because the mean of its divisors is an integer number (18793584).

Almost surely, 2^144369139 is an apocalyptic number.

144369139 is a deficient number, since it is larger than the sum of its proper divisors (5979533).

144369139 is a wasteful number, since it uses less digits than its factorization.

144369139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41357.

The product of its digits is 69984, while the sum is 40.

The square root of 144369139 is about 12015.3709472492. The cubic root of 144369139 is about 524.5957753165.

The spelling of 144369139 in words is "one hundred forty-four million, three hundred sixty-nine thousand, one hundred thirty-nine".