30133249 has 4 divisors (see below), whose sum is σ = 30431700. Its totient is φ = 29834800.

The previous prime is 30133217. The next prime is 30133273. The reversal of 30133249 is 94233103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94233103 = 19 ⋅4959637.

It can be written as a sum of positive squares in 2 ways, for example, as 24681024 + 5452225 = 4968^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 30133249 - 2⁵ = 30133217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30133549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149074 + ... + 149275.

It is an arithmetic number, because the mean of its divisors is an integer number (7607925).

Almost surely, 2^30133249 is an apocalyptic number.

It is an amenable number.

30133249 is a deficient number, since it is larger than the sum of its proper divisors (298451).

30133249 is a wasteful number, since it uses less digits than its factorization.

30133249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298450.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30133249 is about 5489.3760118979. The cubic root of 30133249 is about 311.1826107445.

The spelling of 30133249 in words is "thirty million, one hundred thirty-three thousand, two hundred forty-nine".