354581 has 2 divisors, whose sum is σ = 354582. Its totient is φ = 354580.

The previous prime is 354553. The next prime is 354587. The reversal of 354581 is 185453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320356 + 34225 = 566^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 354581 - 2¹⁰ = 353557 is a prime.

It is a super-2 number, since 2×354581² = 251455371122, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 354581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177290 + 177291.

It is an arithmetic number, because the mean of its divisors is an integer number (177291).

2³⁵⁴⁵⁸¹ is an apocalyptic number.

It is an amenable number.

354581 is a deficient number, since it is larger than the sum of its proper divisors (1).

354581 is an equidigital number, since it uses as much as digits as its factorization.

354581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 26.

The square root of 354581 is about 595.4670435885. The cubic root of 354581 is about 70.7791191468.

The spelling of 354581 in words is "three hundred fifty-four thousand, five hundred eighty-one".