30136128 has 112 divisors (see below), whose sum is σ = 91683840. Its totient is φ = 8640000.

The previous prime is 30136103. The next prime is 30136129. The reversal of 30136128 is 82163103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 30136098 and 30136107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30136129) 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 15 ways as a sum of consecutive naturals, for example, 39753 + ... + 40503.

Almost surely, 2^30136128 is an apocalyptic number.

30136128 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30136128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45841920).

30136128 is an abundant number, since it is smaller than the sum of its proper divisors (61547712).

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

30136128 is a wasteful number, since it uses less digits than its factorization.

30136128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 30136128 is about 5489.6382394471. The cubic root of 30136128 is about 311.1925207966.

The spelling of 30136128 in words is "thirty million, one hundred thirty-six thousand, one hundred twenty-eight".