353740561 has 4 divisors (see below), whose sum is σ = 354126400. Its totient is φ = 353354724.

The previous prime is 353740559. The next prime is 353740567. The reversal of 353740561 is 165047353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 353740561 - 2¹ = 353740559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (353740567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191541 + ... + 193378.

It is an arithmetic number, because the mean of its divisors is an integer number (88531600).

Almost surely, 2^353740561 is an apocalyptic number.

It is an amenable number.

353740561 is a deficient number, since it is larger than the sum of its proper divisors (385839).

353740561 is an equidigital number, since it uses as much as digits as its factorization.

353740561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385838.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 353740561 is about 18807.9919449153. The cubic root of 353740561 is about 707.2315394447.

The spelling of 353740561 in words is "three hundred fifty-three million, seven hundred forty thousand, five hundred sixty-one".