135143001 has 24 divisors (see below), whose sum is σ = 227844864. Its totient is φ = 75579840.

The previous prime is 135142961. The next prime is 135143051. The reversal of 135143001 is 100341531.

It is not a de Polignac number, because 135143001 - 2¹⁴ = 135126617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135143051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19860 + ... + 25781.

It is an arithmetic number, because the mean of its divisors is an integer number (9493536).

Almost surely, 2^135143001 is an apocalyptic number.

It is an amenable number.

135143001 is a deficient number, since it is larger than the sum of its proper divisors (92701863).

135143001 is a wasteful number, since it uses less digits than its factorization.

135143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45701 (or 45698 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 135143001 is about 11625.1021930992. The cubic root of 135143001 is about 513.1738521370.

Adding to 135143001 its reverse (100341531), we get a palindrome (235484532).

The spelling of 135143001 in words is "one hundred thirty-five million, one hundred forty-three thousand, one".