354335581 has 4 divisors (see below), whose sum is σ = 361021212. Its totient is φ = 347649952.

The previous prime is 354335563. The next prime is 354335587. The reversal of 354335581 is 185533453.

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 127351225 + 226984356 = 11285^2 + 15066^2 .

It is a cyclic number.

It is not a de Polignac number, because 354335581 - 2¹⁷ = 354204509 is a prime.

It is a super-2 number, since 2×354335581² = 251107407925215122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 354335581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354335587) 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, 3342736 + ... + 3342841.

It is an arithmetic number, because the mean of its divisors is an integer number (90255303).

Almost surely, 2^354335581 is an apocalyptic number.

It is an amenable number.

354335581 is a deficient number, since it is larger than the sum of its proper divisors (6685631).

354335581 is an equidigital number, since it uses as much as digits as its factorization.

354335581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6685630.

The product of its digits is 108000, while the sum is 37.

The square root of 354335581 is about 18823.8035741983. The cubic root of 354335581 is about 707.6278573756.

It can be divided in two parts, 35433 and 5581, that added together give a palindrome (41014).

The spelling of 354335581 in words is "three hundred fifty-four million, three hundred thirty-five thousand, five hundred eighty-one".