356165 has 4 divisors (see below), whose sum is σ = 427404. Its totient is φ = 284928.

The previous prime is 356143. The next prime is 356171. The reversal of 356165 is 561653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561653 = 457 ⋅1229.

It can be written as a sum of positive squares in 2 ways, for example, as 195364 + 160801 = 442^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 356165 - 2⁶ = 356101 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356165.

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, 35612 + ... + 35621.

It is an arithmetic number, because the mean of its divisors is an integer number (106851).

2³⁵⁶¹⁶⁵ is an apocalyptic number.

It is an amenable number.

356165 is a deficient number, since it is larger than the sum of its proper divisors (71239).

356165 is an equidigital number, since it uses as much as digits as its factorization.

356165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71238.

The product of its digits is 2700, while the sum is 26.

The square root of 356165 is about 596.7956099034. The cubic root of 356165 is about 70.8843584676.

The spelling of 356165 in words is "three hundred fifty-six thousand, one hundred sixty-five".