135143253 has 12 divisors (see below), whose sum is σ = 223093728. Its totient is φ = 77224680.

The previous prime is 135143237. The next prime is 135143273. The reversal of 135143253 is 352341531.

It is not a de Polignac number, because 135143253 - 2⁴ = 135143237 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135143233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1072503 + ... + 1072628.

It is an arithmetic number, because the mean of its divisors is an integer number (18591144).

Almost surely, 2^135143253 is an apocalyptic number.

It is an amenable number.

135143253 is a deficient number, since it is larger than the sum of its proper divisors (87950475).

135143253 is a wasteful number, since it uses less digits than its factorization.

135143253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145144 (or 2145141 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 135143253 is about 11625.1130317086. The cubic root of 135143253 is about 513.1741711071.

Adding to 135143253 its reverse (352341531), we get a palindrome (487484784).

The spelling of 135143253 in words is "one hundred thirty-five million, one hundred forty-three thousand, two hundred fifty-three".