351145 has 4 divisors (see below), whose sum is σ = 421380. Its totient is φ = 280912.

The previous prime is 351133. The next prime is 351151. The reversal of 351145 is 541153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 278784 + 72361 = 528^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 351145 - 2¹⁵ = 318377 is a prime.

It is a super-2 number, since 2×351145² = 246605622050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35110 + ... + 35119.

It is an arithmetic number, because the mean of its divisors is an integer number (105345).

2³⁵¹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

351145 is a deficient number, since it is larger than the sum of its proper divisors (70235).

351145 is an equidigital number, since it uses as much as digits as its factorization.

351145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70234.

The product of its digits is 300, while the sum is 19.

The square root of 351145 is about 592.5748897819. The cubic root of 351145 is about 70.5497527852.

Adding to 351145 its reverse (541153), we get a palindrome (892298).

It can be divided in two parts, 351 and 145, that added together give a triangular number (496 = T₃₁).

The spelling of 351145 in words is "three hundred fifty-one thousand, one hundred forty-five".