128361135 has 48 divisors (see below), whose sum is σ = 252986976. Its totient is φ = 55222272.

The previous prime is 128361109. The next prime is 128361139. The reversal of 128361135 is 531163821.

It is not a de Polignac number, because 128361135 - 2⁷ = 128361007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128361139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7359 + ... + 17631.

It is an arithmetic number, because the mean of its divisors is an integer number (5270562).

Almost surely, 2^128361135 is an apocalyptic number.

128361135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128361135 is a deficient number, since it is larger than the sum of its proper divisors (124625841).

128361135 is a wasteful number, since it uses less digits than its factorization.

128361135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312 (or 10305 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 128361135 is about 11329.6573205018. The cubic root of 128361135 is about 504.4419349048.

The spelling of 128361135 in words is "one hundred twenty-eight million, three hundred sixty-one thousand, one hundred thirty-five".