144395137 has 4 divisors (see below), whose sum is σ = 144528340. Its totient is φ = 144261936.

The previous prime is 144395101. The next prime is 144395159. The reversal of 144395137 is 731593441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133610481 + 10784656 = 11559^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 144395137 - 2¹¹ = 144393089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144395096 and 144395105.

It is not an unprimeable number, because it can be changed into a prime (144395197) 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, 64962 + ... + 67147.

It is an arithmetic number, because the mean of its divisors is an integer number (36132085).

Almost surely, 2^144395137 is an apocalyptic number.

It is an amenable number.

144395137 is a deficient number, since it is larger than the sum of its proper divisors (133203).

144395137 is a wasteful number, since it uses less digits than its factorization.

144395137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133202.

The product of its digits is 45360, while the sum is 37.

The square root of 144395137 is about 12016.4527627749. The cubic root of 144395137 is about 524.6272631688.

It can be divided in two parts, 1443 and 95137, that added together give a triangular number (96580 = T₄₃₉).

The spelling of 144395137 in words is "one hundred forty-four million, three hundred ninety-five thousand, one hundred thirty-seven".