30215146 has 16 divisors (see below), whose sum is σ = 50932224. Its totient is φ = 13338864.

The previous prime is 30215117. The next prime is 30215161. The reversal of 30215146 is 64151203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24666 + ... + 25861.

It is an arithmetic number, because the mean of its divisors is an integer number (3183264).

Almost surely, 2^30215146 is an apocalyptic number.

30215146 is a deficient number, since it is larger than the sum of its proper divisors (20717078).

30215146 is a wasteful number, since it uses less digits than its factorization.

30215146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50565.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 30215146 is about 5496.8305413211. The cubic root of 30215146 is about 311.4642693778.

Adding to 30215146 its reverse (64151203), we get a palindrome (94366349).

The spelling of 30215146 in words is "thirty million, two hundred fifteen thousand, one hundred forty-six".