353421145 has 32 divisors (see below), whose sum is σ = 529966080. Its totient is φ = 219810240.

The previous prime is 353421139. The next prime is 353421161. The reversal of 353421145 is 541124353.

It is not a de Polignac number, because 353421145 - 2⁵ = 353421113 is a prime.

It is a super-2 number, since 2×353421145² = 249813011466222050, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 237574 + ... + 239056.

It is an arithmetic number, because the mean of its divisors is an integer number (16561440).

Almost surely, 2^353421145 is an apocalyptic number.

353421145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

353421145 is a deficient number, since it is larger than the sum of its proper divisors (176544935).

353421145 is a wasteful number, since it uses less digits than its factorization.

353421145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125.

The product of its digits is 7200, while the sum is 28.

The square root of 353421145 is about 18799.4985305460. The cubic root of 353421145 is about 707.0186064630.

Adding to 353421145 its reverse (541124353), we get a palindrome (894545498).

The spelling of 353421145 in words is "three hundred fifty-three million, four hundred twenty-one thousand, one hundred forty-five".