30150813 has 16 divisors (see below), whose sum is σ = 50121216. Its totient is φ = 15662640.

The previous prime is 30150811. The next prime is 30150833. The reversal of 30150813 is 31805103.

It is a happy number.

It is not a de Polignac number, because 30150813 - 2¹ = 30150811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30150813.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65031 + ... + 65492.

It is an arithmetic number, because the mean of its divisors is an integer number (3132576).

Almost surely, 2^30150813 is an apocalyptic number.

30150813 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30150813 is a deficient number, since it is larger than the sum of its proper divisors (19970403).

30150813 is a wasteful number, since it uses less digits than its factorization.

30150813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130544.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 30150813 is about 5490.9755963763. The cubic root of 30150813 is about 311.2430594733.

Adding to 30150813 its reverse (31805103), we get a palindrome (61955916).

The spelling of 30150813 in words is "thirty million, one hundred fifty thousand, eight hundred thirteen".