135245143 has 4 divisors (see below), whose sum is σ = 147540168. Its totient is φ = 122950120.

The previous prime is 135245137. The next prime is 135245147. The reversal of 135245143 is 341542531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135245143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135245147) 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, 6147496 + ... + 6147517.

It is an arithmetic number, because the mean of its divisors is an integer number (36885042).

Almost surely, 2^135245143 is an apocalyptic number.

135245143 is a deficient number, since it is larger than the sum of its proper divisors (12295025).

135245143 is a wasteful number, since it uses less digits than its factorization.

135245143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295024.

The product of its digits is 7200, while the sum is 28.

The square root of 135245143 is about 11629.4945289982. The cubic root of 135245143 is about 513.3031063422.

Adding to 135245143 its reverse (341542531), we get a palindrome (476787674).

The spelling of 135245143 in words is "one hundred thirty-five million, two hundred forty-five thousand, one hundred forty-three".