135144145 has 8 divisors (see below), whose sum is σ = 162760104. Its totient is φ = 107723904.

The previous prime is 135144143. The next prime is 135144157. The reversal of 135144145 is 541441531.

It can be written as a sum of positive squares in 4 ways, for example, as 746496 + 134397649 = 864^2 + 11593^2 .

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 135144145 - 2¹ = 135144143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135144143) 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, 47404 + ... + 50173.

It is an arithmetic number, because the mean of its divisors is an integer number (20345013).

Almost surely, 2^135144145 is an apocalyptic number.

It is an amenable number.

135144145 is a deficient number, since it is larger than the sum of its proper divisors (27615959).

135144145 is an equidigital number, since it uses as much as digits as its factorization.

135144145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97859.

The product of its digits is 4800, while the sum is 28.

The square root of 135144145 is about 11625.1513968636. The cubic root of 135144145 is about 513.1753001568.

Adding to 135144145 its reverse (541441531), we get a palindrome (676585676).

The spelling of 135144145 in words is "one hundred thirty-five million, one hundred forty-four thousand, one hundred forty-five".