30051213 has 8 divisors (see below), whose sum is σ = 40324128. Its totient is φ = 19906224.

The previous prime is 30051211. The next prime is 30051227. The reversal of 30051213 is 31215003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30051213 - 2¹ = 30051211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30051192 and 30051201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30051211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31431 + ... + 32372.

It is an arithmetic number, because the mean of its divisors is an integer number (5040516).

Almost surely, 2^30051213 is an apocalyptic number.

It is an amenable number.

30051213 is a deficient number, since it is larger than the sum of its proper divisors (10272915).

30051213 is a wasteful number, since it uses less digits than its factorization.

30051213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63963.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 30051213 is about 5481.8986674327. The cubic root of 30051213 is about 310.8999619659.

Adding to 30051213 its reverse (31215003), we get a palindrome (61266216).

The spelling of 30051213 in words is "thirty million, fifty-one thousand, two hundred thirteen".