351142969 has 4 divisors (see below), whose sum is σ = 358614144. Its totient is φ = 343671796.

The previous prime is 351142949. The next prime is 351142997. The reversal of 351142969 is 969241153.

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 not a de Polignac number, because 351142969 - 2⁵ = 351142937 is a prime.

It is a super-2 number, since 2×351142969² = 246602769356269922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351142949) 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, 3735517 + ... + 3735610.

It is an arithmetic number, because the mean of its divisors is an integer number (89653536).

Almost surely, 2^351142969 is an apocalyptic number.

It is an amenable number.

351142969 is a deficient number, since it is larger than the sum of its proper divisors (7471175).

351142969 is an equidigital number, since it uses as much as digits as its factorization.

351142969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471174.

The product of its digits is 58320, while the sum is 40.

The square root of 351142969 is about 18738.8091670736. The cubic root of 351142969 is about 705.4961676657.

It can be divided in two parts, 35114 and 2969, that added together give a palindrome (38083).

The spelling of 351142969 in words is "three hundred fifty-one million, one hundred forty-two thousand, nine hundred sixty-nine".