30149203 has 8 divisors (see below), whose sum is σ = 34538240. Its totient is φ = 25780680.

The previous prime is 30149201. The next prime is 30149221. The reversal of 30149203 is 30294103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30149203 - 2¹ = 30149201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30149201) 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 7 ways as a sum of consecutive naturals, for example, 1833 + ... + 7978.

It is an arithmetic number, because the mean of its divisors is an integer number (4317280).

Almost surely, 2^30149203 is an apocalyptic number.

30149203 is a deficient number, since it is larger than the sum of its proper divisors (4389037).

30149203 is an equidigital number, since it uses as much as digits as its factorization.

30149203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10257.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30149203 is about 5490.8289902345. The cubic root of 30149203 is about 311.2375194320.

The spelling of 30149203 in words is "thirty million, one hundred forty-nine thousand, two hundred three".