30453121 has 4 divisors (see below), whose sum is σ = 30474544. Its totient is φ = 30431700.

The previous prime is 30453113. The next prime is 30453139. The reversal of 30453121 is 12135403.

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.

It is a cyclic number.

It is not a de Polignac number, because 30453121 - 2³ = 30453113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30453151) 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 3 ways as a sum of consecutive naturals, for example, 8415 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (7618636).

Almost surely, 2^30453121 is an apocalyptic number.

It is an amenable number.

30453121 is a deficient number, since it is larger than the sum of its proper divisors (21423).

30453121 is a wasteful number, since it uses less digits than its factorization.

30453121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21422.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30453121 is about 5518.4346512394. The cubic root of 30453121 is about 312.2798312654.

Adding to 30453121 its reverse (12135403), we get a palindrome (42588524).

The spelling of 30453121 in words is "thirty million, four hundred fifty-three thousand, one hundred twenty-one".