135423550 has 24 divisors (see below), whose sum is σ = 252216000. Its totient is φ = 54098880.

The previous prime is 135423539. The next prime is 135423569. The reversal of 135423550 is 55324531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55251 + ... + 57649.

It is an arithmetic number, because the mean of its divisors is an integer number (10509000).

Almost surely, 2^135423550 is an apocalyptic number.

135423550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135423550 is a deficient number, since it is larger than the sum of its proper divisors (116792450).

135423550 is a wasteful number, since it uses less digits than its factorization.

135423550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 135423550 is about 11637.1624548255. The cubic root of 135423550 is about 513.5287130374.

The spelling of 135423550 in words is "one hundred thirty-five million, four hundred twenty-three thousand, five hundred fifty".