135389028 has 24 divisors (see below), whose sum is σ = 326099200. Its totient is φ = 43673760.

The previous prime is 135389027. The next prime is 135389057. The reversal of 135389028 is 820983531.

It is not an unprimeable number, because it can be changed into a prime (135389021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181603 + ... + 182346.

Almost surely, 2^135389028 is an apocalyptic number.

It is an amenable number.

135389028 is an abundant number, since it is smaller than the sum of its proper divisors (190710172).

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

135389028 is a wasteful number, since it uses less digits than its factorization.

135389028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363987 (or 363985 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 135389028 is about 11635.6790949218. The cubic root of 135389028 is about 513.4850732991.

The spelling of 135389028 in words is "one hundred thirty-five million, three hundred eighty-nine thousand, twenty-eight".