30150421 has 4 divisors (see below), whose sum is σ = 34457632. Its totient is φ = 25843212.

The previous prime is 30150391. The next prime is 30150431. The reversal of 30150421 is 12405103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12405103 = 151 ⋅82153.

It is a cyclic number.

It is not a de Polignac number, because 30150421 - 2⁵ = 30150389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30150395 and 30150404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30150431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153595 + ... + 2153608.

It is an arithmetic number, because the mean of its divisors is an integer number (8614408).

Almost surely, 2^30150421 is an apocalyptic number.

It is an amenable number.

30150421 is a deficient number, since it is larger than the sum of its proper divisors (4307211).

30150421 is an equidigital number, since it uses as much as digits as its factorization.

30150421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307210.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30150421 is about 5490.9399013284. The cubic root of 30150421 is about 311.2417106119.

Adding to 30150421 its reverse (12405103), we get a palindrome (42555524).

The spelling of 30150421 in words is "thirty million, one hundred fifty thousand, four hundred twenty-one".