345455121 has 24 divisors (see below), whose sum is σ = 511558432. Its totient is φ = 207187200.

The previous prime is 345455119. The next prime is 345455129. The reversal of 345455121 is 121554543.

It is not a de Polignac number, because 345455121 - 2¹ = 345455119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345455129) 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 23 ways as a sum of consecutive naturals, for example, 30306 + ... + 40116.

Almost surely, 2^345455121 is an apocalyptic number.

It is an amenable number.

345455121 is a deficient number, since it is larger than the sum of its proper divisors (166103311).

345455121 is a wasteful number, since it uses less digits than its factorization.

345455121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933 (or 9922 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 345455121 is about 18586.4230286519. The cubic root of 345455121 is about 701.6661812507. Note that the first 3 decimals are identical.

The spelling of 345455121 in words is "three hundred forty-five million, four hundred fifty-five thousand, one hundred twenty-one".