135899788 has 6 divisors (see below), whose sum is σ = 237824636. Its totient is φ = 67949892.

The previous prime is 135899773. The next prime is 135899807. The reversal of 135899788 is 887998531.

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 as a sum of consecutive naturals, namely, 16987470 + ... + 16987477.

Almost surely, 2^135899788 is an apocalyptic number.

It is an amenable number.

135899788 is a deficient number, since it is larger than the sum of its proper divisors (101924848).

135899788 is a wasteful number, since it uses less digits than its factorization.

135899788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33974951 (or 33974949 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 58.

The square root of 135899788 is about 11657.6064438632. The cubic root of 135899788 is about 514.1299766680.

The spelling of 135899788 in words is "one hundred thirty-five million, eight hundred ninety-nine thousand, seven hundred eighty-eight".