30987135 has 48 divisors (see below), whose sum is σ = 56259840. Its totient is φ = 15759360.

The previous prime is 30987101. The next prime is 30987149. The reversal of 30987135 is 53178903.

It is not a de Polignac number, because 30987135 - 2⁷ = 30987007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30987135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135201 + ... + 135429.

It is an arithmetic number, because the mean of its divisors is an integer number (1172080).

Almost surely, 2^30987135 is an apocalyptic number.

30987135 is a deficient number, since it is larger than the sum of its proper divisors (25272705).

30987135 is a wasteful number, since it uses less digits than its factorization.

30987135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 30987135 is about 5566.6089318363. The cubic root of 30987135 is about 314.0946034607.

The spelling of 30987135 in words is "thirty million, nine hundred eighty-seven thousand, one hundred thirty-five".