30087136 has 12 divisors (see below), whose sum is σ = 59234112. Its totient is φ = 15043552.

The previous prime is 30087131. The next prime is 30087139. The reversal of 30087136 is 63178003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30087131) 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 as a sum of consecutive naturals, namely, 470080 + ... + 470143.

It is an arithmetic number, because the mean of its divisors is an integer number (4936176).

Almost surely, 2^30087136 is an apocalyptic number.

It is an amenable number.

30087136 is a deficient number, since it is larger than the sum of its proper divisors (29146976).

30087136 is an equidigital number, since it uses as much as digits as its factorization.

30087136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940233 (or 940225 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30087136 is about 5485.1741996039. The cubic root of 30087136 is about 311.0237951486.

The spelling of 30087136 in words is "thirty million, eighty-seven thousand, one hundred thirty-six".