30150812 has 6 divisors (see below), whose sum is σ = 52763928. Its totient is φ = 15075404.

The previous prime is 30150811. The next prime is 30150833. The reversal of 30150812 is 21805103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30150811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3768848 + ... + 3768855.

It is an arithmetic number, because the mean of its divisors is an integer number (8793988).

Almost surely, 2^30150812 is an apocalyptic number.

It is an amenable number.

30150812 is a deficient number, since it is larger than the sum of its proper divisors (22613116).

30150812 is a wasteful number, since it uses less digits than its factorization.

30150812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537707 (or 7537705 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 30150812 is about 5490.9755053178. The cubic root of 30150812 is about 311.2430560323.

Adding to 30150812 its reverse (21805103), we get a palindrome (51955915).

The spelling of 30150812 in words is "thirty million, one hundred fifty thousand, eight hundred twelve".