354120243 has 4 divisors (see below), whose sum is σ = 472160328. Its totient is φ = 236080160.

The previous prime is 354120211. The next prime is 354120257. The reversal of 354120243 is 342021453.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 354120243 - 2⁵ = 354120211 is a prime.

It is a super-2 number, since 2×354120243² = 250802293004758098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (354120743) 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, 59020038 + ... + 59020043.

It is an arithmetic number, because the mean of its divisors is an integer number (118040082).

Almost surely, 2^354120243 is an apocalyptic number.

354120243 is a deficient number, since it is larger than the sum of its proper divisors (118040085).

354120243 is a wasteful number, since it uses less digits than its factorization.

354120243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118040084.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 354120243 is about 18818.0828725989. The cubic root of 354120243 is about 707.4844810074.

Adding to 354120243 its reverse (342021453), we get a palindrome (696141696).

The spelling of 354120243 in words is "three hundred fifty-four million, one hundred twenty thousand, two hundred forty-three".