351343661 has 4 divisors (see below), whose sum is σ = 351388992. Its totient is φ = 351298332.

The previous prime is 351343627. The next prime is 351343667. The reversal of 351343661 is 166343153.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351343661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351343667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7781 + ... + 27626.

It is an arithmetic number, because the mean of its divisors is an integer number (87847248).

Almost surely, 2^351343661 is an apocalyptic number.

It is an amenable number.

351343661 is a deficient number, since it is larger than the sum of its proper divisors (45331).

351343661 is an equidigital number, since it uses as much as digits as its factorization.

351343661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45330.

The product of its digits is 19440, while the sum is 32.

The square root of 351343661 is about 18744.1633849046. The cubic root of 351343661 is about 705.6305483252.

It can be divided in two parts, 3513 and 43661, that added together give a palindrome (47174).

The spelling of 351343661 in words is "three hundred fifty-one million, three hundred forty-three thousand, six hundred sixty-one".