30186148 has 12 divisors (see below), whose sum is σ = 53022592. Its totient is φ = 15036840.

The previous prime is 30186139. The next prime is 30186161. The reversal of 30186148 is 84168103.

It is a super-2 number, since 2×30186148² = 1822407062155808, which contains 22 as substring.

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, 12840 + ... + 15007.

Almost surely, 2^30186148 is an apocalyptic number.

It is an amenable number.

30186148 is a deficient number, since it is larger than the sum of its proper divisors (22836444).

30186148 is a wasteful number, since it uses less digits than its factorization.

30186148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28122 (or 28120 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 30186148 is about 5494.1922063211. The cubic root of 30186148 is about 311.3645982640.

The spelling of 30186148 in words is "thirty million, one hundred eighty-six thousand, one hundred forty-eight".