354800561 has 4 divisors (see below), whose sum is σ = 359797824. Its totient is φ = 349803300.

The previous prime is 354800543. The next prime is 354800581. The reversal of 354800561 is 165008453.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-354800561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354800581) 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, 2498525 + ... + 2498666.

It is an arithmetic number, because the mean of its divisors is an integer number (89949456).

Almost surely, 2^354800561 is an apocalyptic number.

It is an amenable number.

354800561 is a deficient number, since it is larger than the sum of its proper divisors (4997263).

354800561 is an equidigital number, since it uses as much as digits as its factorization.

354800561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997262.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 354800561 is about 18836.1503763375. The cubic root of 354800561 is about 707.9372523843.

The spelling of 354800561 in words is "three hundred fifty-four million, eight hundred thousand, five hundred sixty-one".