351268643 has 4 divisors (see below), whose sum is σ = 383202168. Its totient is φ = 319335120.

The previous prime is 351268601. The next prime is 351268663. The reversal of 351268643 is 346862153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346862153 = 11 ⋅31532923.

It is a cyclic number.

It is not a de Polignac number, because 351268643 - 2¹⁸ = 351006499 is a prime.

It is a super-2 number, since 2×351268643² = 246779319110122898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351268597 and 351268606.

It is not an unprimeable number, because it can be changed into a prime (351268663) 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 3 ways as a sum of consecutive naturals, for example, 15966746 + ... + 15966767.

It is an arithmetic number, because the mean of its divisors is an integer number (95800542).

Almost surely, 2^351268643 is an apocalyptic number.

351268643 is a deficient number, since it is larger than the sum of its proper divisors (31933525).

351268643 is a wasteful number, since it uses less digits than its factorization.

351268643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31933524.

The product of its digits is 103680, while the sum is 38.

The square root of 351268643 is about 18742.1621751600. The cubic root of 351268643 is about 705.5803232736.

The spelling of 351268643 in words is "three hundred fifty-one million, two hundred sixty-eight thousand, six hundred forty-three".