355389121 has 4 divisors (see below), whose sum is σ = 355828144. Its totient is φ = 354950100.

The previous prime is 355389103. The next prime is 355389127. The reversal of 355389121 is 121983553.

It is a happy number.

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 355389121 - 2¹¹ = 355387073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355389127) 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, 218295 + ... + 219916.

It is an arithmetic number, because the mean of its divisors is an integer number (88957036).

Almost surely, 2^355389121 is an apocalyptic number.

It is an amenable number.

355389121 is a deficient number, since it is larger than the sum of its proper divisors (439023).

355389121 is an equidigital number, since it uses as much as digits as its factorization.

355389121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439022.

The product of its digits is 32400, while the sum is 37.

The square root of 355389121 is about 18851.7670524543. The cubic root of 355389121 is about 708.3284894279.

The spelling of 355389121 in words is "three hundred fifty-five million, three hundred eighty-nine thousand, one hundred twenty-one".