135193928 has 16 divisors (see below), whose sum is σ = 268399980. Its totient is φ = 63620608.

The previous prime is 135193909. The next prime is 135193997. The reversal of 135193928 is 829391531.

135193928 = T₂₂₇₇ + T₂₂₇₈ + ... + T₂₃₂₇.

It can be written as a sum of positive squares in 2 ways, for example, as 100360324 + 34833604 = 10018^2 + 5902^2 .

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, 496901 + ... + 497172.

Almost surely, 2^135193928 is an apocalyptic number.

It is an amenable number.

135193928 is a deficient number, since it is larger than the sum of its proper divisors (133206052).

135193928 is a wasteful number, since it uses less digits than its factorization.

135193928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994096 (or 994092 counting only the distinct ones).

The product of its digits is 58320, while the sum is 41.

The square root of 135193928 is about 11627.2923761295. The cubic root of 135193928 is about 513.2383051546.

The spelling of 135193928 in words is "one hundred thirty-five million, one hundred ninety-three thousand, nine hundred twenty-eight".