135143452 has 12 divisors (see below), whose sum is σ = 236661880. Its totient is φ = 67525776.

The previous prime is 135143443. The next prime is 135143467. The reversal of 135143452 is 254341531.

It is a self number, because there is not a number n which added to its sum of digits gives 135143452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4383 + ... + 17014.

Almost surely, 2^135143452 is an apocalyptic number.

It is an amenable number.

135143452 is a deficient number, since it is larger than the sum of its proper divisors (101518428).

135143452 is a wasteful number, since it uses less digits than its factorization.

135143452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22980 (or 22978 counting only the distinct ones).

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

The square root of 135143452 is about 11625.1215907620. The cubic root of 135143452 is about 513.1744229920.

Adding to 135143452 its reverse (254341531), we get a palindrome (389484983).

The spelling of 135143452 in words is "one hundred thirty-five million, one hundred forty-three thousand, four hundred fifty-two".