30195549 has 12 divisors (see below), whose sum is σ = 44331612. Its totient is φ = 19800000.

The previous prime is 30195523. The next prime is 30195563. The reversal of 30195549 is 94559103.

It can be written as a sum of positive squares in 2 ways, for example, as 710649 + 29484900 = 843^2 + 5430^2 .

It is not a de Polignac number, because 30195549 - 2⁹ = 30195037 is a prime.

It is a super-2 number, since 2×30195549² = 1823542358822802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30195509) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26952 + ... + 28049.

It is an arithmetic number, because the mean of its divisors is an integer number (3694301).

Almost surely, 2^30195549 is an apocalyptic number.

It is an amenable number.

30195549 is a deficient number, since it is larger than the sum of its proper divisors (14136063).

30195549 is a wasteful number, since it uses less digits than its factorization.

30195549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55068 (or 55065 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 30195549 is about 5495.0476795020. The cubic root of 30195549 is about 311.3969181079.

The spelling of 30195549 in words is "thirty million, one hundred ninety-five thousand, five hundred forty-nine".