135143512 has 32 divisors (see below), whose sum is σ = 294508800. Its totient is φ = 56935584.

The previous prime is 135143479. The next prime is 135143521. The reversal of 135143512 is 215341531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17148 + ... + 23755.

It is an arithmetic number, because the mean of its divisors is an integer number (9203400).

Almost surely, 2^135143512 is an apocalyptic number.

It is an amenable number.

135143512 is an abundant number, since it is smaller than the sum of its proper divisors (159365288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135143512 is a wasteful number, since it uses less digits than its factorization.

135143512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40975 (or 40971 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 135143512 is about 11625.1241713798. The cubic root of 135143512 is about 513.1744989371.

The spelling of 135143512 in words is "one hundred thirty-five million, one hundred forty-three thousand, five hundred twelve".