30150021 has 8 divisors (see below), whose sum is σ = 43854624. Its totient is φ = 18272720.

The previous prime is 30150007. The next prime is 30150023. The reversal of 30150021 is 12005103.

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 30150021 - 2⁵ = 30149989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30149979 and 30150006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30150023) 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, 456786 + ... + 456851.

It is an arithmetic number, because the mean of its divisors is an integer number (5481828).

Almost surely, 2^30150021 is an apocalyptic number.

It is an amenable number.

30150021 is a deficient number, since it is larger than the sum of its proper divisors (13704603).

30150021 is a wasteful number, since it uses less digits than its factorization.

30150021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913651.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 30150021 is about 5490.9034775709. The cubic root of 30150021 is about 311.2403342106.

Adding to 30150021 its reverse (12005103), we get a palindrome (42155124).

It can be divided in two parts, 30 and 150021, that added together give a palindrome (150051).

The spelling of 30150021 in words is "thirty million, one hundred fifty thousand, twenty-one".