355081 has 4 divisors (see below), whose sum is σ = 360964. Its totient is φ = 349200.

The previous prime is 355073. The next prime is 355087. The reversal of 355081 is 180553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180553 = 71 ⋅2543.

It can be written as a sum of positive squares in 2 ways, for example, as 144400 + 210681 = 380^2 + 459^2 .

It is a cyclic number.

It is not a de Polignac number, because 355081 - 2³ = 355073 is a prime.

It is a super-2 number, since 2×355081² = 252165033122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850 + ... + 2971.

It is an arithmetic number, because the mean of its divisors is an integer number (90241).

2³⁵⁵⁰⁸¹ is an apocalyptic number.

It is an amenable number.

355081 is a deficient number, since it is larger than the sum of its proper divisors (5883).

355081 is an equidigital number, since it uses as much as digits as its factorization.

355081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 355081 is about 595.8867342037. The cubic root of 355081 is about 70.8123724215.

The spelling of 355081 in words is "three hundred fifty-five thousand, eighty-one".