135031388 has 12 divisors (see below), whose sum is σ = 236965680. Its totient is φ = 67326912.

The previous prime is 135031373. The next prime is 135031451. The reversal of 135031388 is 883130531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45581 + ... + 48452.

It is an arithmetic number, because the mean of its divisors is an integer number (19747140).

Almost surely, 2^135031388 is an apocalyptic number.

It is an amenable number.

135031388 is a deficient number, since it is larger than the sum of its proper divisors (101934292).

135031388 is a wasteful number, since it uses less digits than its factorization.

135031388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94396 (or 94394 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 135031388 is about 11620.3006845778. The cubic root of 135031388 is about 513.0325384962.

The spelling of 135031388 in words is "one hundred thirty-five million, thirty-one thousand, three hundred eighty-eight".