351938243 has 4 divisors (see below), whose sum is σ = 351984120. Its totient is φ = 351892368.

The previous prime is 351938239. The next prime is 351938269. The reversal of 351938243 is 342839153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342839153 = 17 ⋅20167009.

It is a cyclic number.

It is not a de Polignac number, because 351938243 - 2² = 351938239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351938197 and 351938206.

It is not an unprimeable number, because it can be changed into a prime (351238243) 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, 8330 + ... + 27807.

It is an arithmetic number, because the mean of its divisors is an integer number (87996030).

Almost surely, 2^351938243 is an apocalyptic number.

351938243 is a deficient number, since it is larger than the sum of its proper divisors (45877).

351938243 is an equidigital number, since it uses as much as digits as its factorization.

351938243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45876.

The product of its digits is 77760, while the sum is 38.

The square root of 351938243 is about 18760.0171375188. The cubic root of 351938243 is about 706.0283722785.

The spelling of 351938243 in words is "three hundred fifty-one million, nine hundred thirty-eight thousand, two hundred forty-three".