351522945 has 12 divisors (see below), whose sum is σ = 609306516. Its totient is φ = 187478880.

The previous prime is 351522883. The next prime is 351522947. The reversal of 351522945 is 549225153.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66048129 + 285474816 = 8127^2 + 16896^2 .

It is not a de Polignac number, because 351522945 - 2⁶ = 351522881 is a prime.

It is a super-2 number, since 2×351522945² = 247136761722946050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (351522947) 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 11 ways as a sum of consecutive naturals, for example, 3905766 + ... + 3905855.

It is an arithmetic number, because the mean of its divisors is an integer number (50775543).

Almost surely, 2^351522945 is an apocalyptic number.

It is an amenable number.

351522945 is a deficient number, since it is larger than the sum of its proper divisors (257783571).

351522945 is a wasteful number, since it uses less digits than its factorization.

351522945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7811632 (or 7811629 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 351522945 is about 18748.9451703289. The cubic root of 351522945 is about 705.7505512066.

The spelling of 351522945 in words is "three hundred fifty-one million, five hundred twenty-two thousand, nine hundred forty-five".