144747137 has 4 divisors (see below), whose sum is σ = 145081860. Its totient is φ = 144412416.

The previous prime is 144747133. The next prime is 144747151. The reversal of 144747137 is 731747441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731747441 = 59 ⋅12402499.

It can be written as a sum of positive squares in 2 ways, for example, as 6355441 + 138391696 = 2521^2 + 11764^2 .

It is a cyclic number.

It is not a de Polignac number, because 144747137 - 2² = 144747133 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 144747137.

It is not an unprimeable number, because it can be changed into a prime (144747131) 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, 166712 + ... + 167577.

It is an arithmetic number, because the mean of its divisors is an integer number (36270465).

Almost surely, 2^144747137 is an apocalyptic number.

It is an amenable number.

144747137 is a deficient number, since it is larger than the sum of its proper divisors (334723).

144747137 is an equidigital number, since it uses as much as digits as its factorization.

144747137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334722.

The product of its digits is 65856, while the sum is 38.

The square root of 144747137 is about 12031.0904327081. The cubic root of 144747137 is about 525.0532215131.

It can be divided in two parts, 1447 and 47137, that added together give a palindrome (48584).

The spelling of 144747137 in words is "one hundred forty-four million, seven hundred forty-seven thousand, one hundred thirty-seven".