30051136 has 28 divisors (see below), whose sum is σ = 60236100. Its totient is φ = 14873600.

The previous prime is 30051127. The next prime is 30051167. The reversal of 30051136 is 63115003.

It can be written as a sum of positive squares in 2 ways, for example, as 29160000 + 891136 = 5400^2 + 944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4140 + ... + 8788.

Almost surely, 2^30051136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30051136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30118050).

30051136 is an abundant number, since it is smaller than the sum of its proper divisors (30184964).

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

30051136 is a wasteful number, since it uses less digits than its factorization.

30051136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 30051136 is about 5481.8916443140. The cubic root of 30051136 is about 310.8996964268.

Adding to 30051136 its reverse (63115003), we get a palindrome (93166139).

The spelling of 30051136 in words is "thirty million, fifty-one thousand, one hundred thirty-six".