351142625 has 8 divisors (see below), whose sum is σ = 438226152. Its totient is φ = 280914000.

The previous prime is 351142607. The next prime is 351142637. The reversal of 351142625 is 526241153.

It can be written as a sum of positive squares in 4 ways, for example, as 3655744 + 347486881 = 1912^2 + 18641^2 .

It is not a de Polignac number, because 351142625 - 2¹⁴ = 351126241 is a prime.

It is a super-2 number, since 2×351142625² = 246602286183781250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1404446 + ... + 1404695.

It is an arithmetic number, because the mean of its divisors is an integer number (54778269).

Almost surely, 2^351142625 is an apocalyptic number.

It is an amenable number.

351142625 is a deficient number, since it is larger than the sum of its proper divisors (87083527).

351142625 is an equidigital number, since it uses as much as digits as its factorization.

351142625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809156 (or 2809146 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 351142625 is about 18738.7999882597. The cubic root of 351142625 is about 705.4959372840.

Adding to 351142625 its reverse (526241153), we get a palindrome (877383778).

The spelling of 351142625 in words is "three hundred fifty-one million, one hundred forty-two thousand, six hundred twenty-five".