30149185 has 16 divisors (see below), whose sum is σ = 39595392. Its totient is φ = 21856000.

The previous prime is 30149167. The next prime is 30149201. The reversal of 30149185 is 58194103.

It is not a de Polignac number, because 30149185 - 2¹⁵ = 30116417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21372 + ... + 22738.

It is an arithmetic number, because the mean of its divisors is an integer number (2474712).

Almost surely, 2^30149185 is an apocalyptic number.

It is an amenable number.

30149185 is a deficient number, since it is larger than the sum of its proper divisors (9446207).

30149185 is a wasteful number, since it uses less digits than its factorization.

30149185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 30149185 is about 5490.8273511375. The cubic root of 30149185 is about 311.2374574926.

The spelling of 30149185 in words is "thirty million, one hundred forty-nine thousand, one hundred eighty-five".