354353121 has 6 divisors (see below), whose sum is σ = 511843410. Its totient is φ = 236235408.

The previous prime is 354353093. The next prime is 354353137. The reversal of 354353121 is 121353453.

It can be written as a sum of positive squares in only one way, i.e., 304014096 + 50339025 = 17436^2 + 7095^2 .

It is not a de Polignac number, because 354353121 - 2⁷ = 354352993 is a prime.

It is a super-2 number, since 2×354353121² = 251132268724881282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (354353161) 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 5 ways as a sum of consecutive naturals, for example, 19686276 + ... + 19686293.

It is an arithmetic number, because the mean of its divisors is an integer number (85307235).

Almost surely, 2^354353121 is an apocalyptic number.

It is an amenable number.

354353121 is a deficient number, since it is larger than the sum of its proper divisors (157490289).

354353121 is a wasteful number, since it uses less digits than its factorization.

354353121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39372575 (or 39372572 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 354353121 is about 18824.2694678970. The cubic root of 354353121 is about 707.6395333013.

The spelling of 354353121 in words is "three hundred fifty-four million, three hundred fifty-three thousand, one hundred twenty-one".