354320121 has 16 divisors (see below), whose sum is σ = 477918144. Its totient is φ = 233478144.

The previous prime is 354320119. The next prime is 354320149. The reversal of 354320121 is 121023453.

It is not a de Polignac number, because 354320121 - 2¹ = 354320119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354322121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184261 + ... + 186173.

It is an arithmetic number, because the mean of its divisors is an integer number (29869884).

Almost surely, 2^354320121 is an apocalyptic number.

It is an amenable number.

354320121 is a deficient number, since it is larger than the sum of its proper divisors (123598023).

354320121 is a wasteful number, since it uses less digits than its factorization.

354320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 354320121 is about 18823.3929194500. The cubic root of 354320121 is about 707.6175657327.

Adding to 354320121 its reverse (121023453), we get a palindrome (475343574).

The spelling of 354320121 in words is "three hundred fifty-four million, three hundred twenty thousand, one hundred twenty-one".