30245155 has 8 divisors (see below), whose sum is σ = 36634032. Its totient is φ = 23969568.

The previous prime is 30245153. The next prime is 30245183. The reversal of 30245155 is 55154203.

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 30245155 - 2¹ = 30245153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30245153) 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, 27732 + ... + 28801.

It is an arithmetic number, because the mean of its divisors is an integer number (4579254).

Almost surely, 2^30245155 is an apocalyptic number.

30245155 is a deficient number, since it is larger than the sum of its proper divisors (6388877).

30245155 is a wasteful number, since it uses less digits than its factorization.

30245155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56645.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 30245155 is about 5499.5595278168. The cubic root of 30245155 is about 311.5673483506.

Adding to 30245155 its reverse (55154203), we get a palindrome (85399358).

The spelling of 30245155 in words is "thirty million, two hundred forty-five thousand, one hundred fifty-five".