342751 has 8 divisors (see below), whose sum is σ = 362880. Its totient is φ = 323232.

The previous prime is 342733. The next prime is 342757. The reversal of 342751 is 157243.

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 342751 - 2⁹ = 342239 is a prime.

It is a Duffinian number.

342751 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342757) 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 7 ways as a sum of consecutive naturals, for example, 1426 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2³⁴²⁷⁵¹ is an apocalyptic number.

342751 is a deficient number, since it is larger than the sum of its proper divisors (20129).

342751 is a wasteful number, since it uses less digits than its factorization.

342751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 840, while the sum is 22.

The square root of 342751 is about 585.4494000339. The cubic root of 342751 is about 69.9830571239.

Adding to 342751 its reverse (157243), we get a palindrome (499994).

The spelling of 342751 in words is "three hundred forty-two thousand, seven hundred fifty-one".