305452121 has 12 divisors (see below), whose sum is σ = 345140928. Its totient is φ = 269693424.

The previous prime is 305452061. The next prime is 305452123. The reversal of 305452121 is 121254503.

It is not a de Polignac number, because 305452121 - 2¹⁸ = 305189977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305452123) 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 11 ways as a sum of consecutive naturals, for example, 35405 + ... + 43178.

It is an arithmetic number, because the mean of its divisors is an integer number (28761744).

Almost surely, 2^305452121 is an apocalyptic number.

It is an amenable number.

305452121 is a deficient number, since it is larger than the sum of its proper divisors (39688807).

305452121 is a wasteful number, since it uses less digits than its factorization.

305452121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78632 (or 78619 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 305452121 is about 17477.1885897017. The cubic root of 305452121 is about 673.4639941569.

The spelling of 305452121 in words is "three hundred five million, four hundred fifty-two thousand, one hundred twenty-one".