30147085 has 16 divisors (see below), whose sum is σ = 37224000. Its totient is φ = 23425920.

The previous prime is 30147083. The next prime is 30147101. The reversal of 30147085 is 58074103.

It is not a de Polignac number, because 30147085 - 2¹ = 30147083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30147083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60166 + ... + 60664.

It is an arithmetic number, because the mean of its divisors is an integer number (2326500).

Almost surely, 2^30147085 is an apocalyptic number.

It is an amenable number.

30147085 is a deficient number, since it is larger than the sum of its proper divisors (7076915).

30147085 is a wasteful number, since it uses less digits than its factorization.

30147085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30147085 is about 5490.6361197952. The cubic root of 30147085 is about 311.2302310525.

The spelling of 30147085 in words is "thirty million, one hundred forty-seven thousand, eighty-five".