135423512 has 32 divisors (see below), whose sum is σ = 296947200. Its totient is φ = 56687904.

The previous prime is 135423493. The next prime is 135423523. The reversal of 135423512 is 215324531.

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, 25712 + ... + 30527.

It is an arithmetic number, because the mean of its divisors is an integer number (9279600).

Almost surely, 2^135423512 is an apocalyptic number.

It is an amenable number.

135423512 is an abundant number, since it is smaller than the sum of its proper divisors (161523688).

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

135423512 is a wasteful number, since it uses less digits than its factorization.

135423512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56295 (or 56291 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 135423512 is about 11637.1608221250. The cubic root of 135423512 is about 513.5286650052.

The spelling of 135423512 in words is "one hundred thirty-five million, four hundred twenty-three thousand, five hundred twelve".