30647145 has 16 divisors (see below), whose sum is σ = 49118400. Its totient is φ = 16317504.

The previous prime is 30647143. The next prime is 30647147. The reversal of 30647145 is 54174603.

It is an interprime number because it is at equal distance from previous prime (30647143) and next prime (30647147).

It is not a de Polignac number, because 30647145 - 2¹ = 30647143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30647143) 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, 10006 + ... + 12704.

It is an arithmetic number, because the mean of its divisors is an integer number (3069900).

Almost surely, 2^30647145 is an apocalyptic number.

It is an amenable number.

30647145 is a deficient number, since it is larger than the sum of its proper divisors (18471255).

30647145 is a wasteful number, since it uses less digits than its factorization.

30647145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 30647145 is about 5535.9863619774. The cubic root of 30647145 is about 312.9416305193.

The spelling of 30647145 in words is "thirty million, six hundred forty-seven thousand, one hundred forty-five".