345161 has 8 divisors (see below), whose sum is σ = 369600. Its totient is φ = 321552.

The previous prime is 345143. The next prime is 345181. The reversal of 345161 is 161543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345161 - 2¹⁴ = 328777 is a prime.

It is a super-2 number, since 2×345161² = 238272231842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2³⁴⁵¹⁶¹ is an apocalyptic number.

It is an amenable number.

345161 is a deficient number, since it is larger than the sum of its proper divisors (24439).

345161 is a wasteful number, since it uses less digits than its factorization.

345161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its digits is 360, while the sum is 20.

The square root of 345161 is about 587.5040425393. The cubic root of 345161 is about 70.1466991502.

The spelling of 345161 in words is "three hundred forty-five thousand, one hundred sixty-one".