30455121 has 4 divisors (see below), whose sum is σ = 40606832. Its totient is φ = 20303412.

The previous prime is 30455111. The next prime is 30455123. The reversal of 30455121 is 12155403.

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 not a de Polignac number, because 30455121 - 2⁶ = 30455057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30455123) 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, 5075851 + ... + 5075856.

It is an arithmetic number, because the mean of its divisors is an integer number (10151708).

Almost surely, 2^30455121 is an apocalyptic number.

It is an amenable number.

30455121 is a deficient number, since it is larger than the sum of its proper divisors (10151711).

30455121 is a wasteful number, since it uses less digits than its factorization.

30455121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151710.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 30455121 is about 5518.6158590719. The cubic root of 30455121 is about 312.2866674119.

The spelling of 30455121 in words is "thirty million, four hundred fifty-five thousand, one hundred twenty-one".