342316561 has 4 divisors (see below), whose sum is σ = 343680624. Its totient is φ = 340952500.

The previous prime is 342316553. The next prime is 342316603. The reversal of 342316561 is 165613243.

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, and also an emirpimes, since its reverse is a distinct semiprime: 165613243 = 1433 ⋅115571.

It is a cyclic number.

It is not a de Polignac number, because 342316561 - 2³ = 342316553 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342316501) 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, 681655 + ... + 682156.

It is an arithmetic number, because the mean of its divisors is an integer number (85920156).

Almost surely, 2^342316561 is an apocalyptic number.

It is an amenable number.

342316561 is a deficient number, since it is larger than the sum of its proper divisors (1364063).

342316561 is a wasteful number, since it uses less digits than its factorization.

342316561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364062.

The product of its digits is 12960, while the sum is 31.

The square root of 342316561 is about 18501.7988584894. The cubic root of 342316561 is about 699.5347663754.

The spelling of 342316561 in words is "three hundred forty-two million, three hundred sixteen thousand, five hundred sixty-one".