342181243 has 4 divisors (see below), whose sum is σ = 343390648. Its totient is φ = 340971840.

The previous prime is 342181223. The next prime is 342181247.

342181243 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342181243 is a prime.

It is a super-4 number, since 4×342181243⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342181247) 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, 604278 + ... + 604843.

It is an arithmetic number, because the mean of its divisors is an integer number (85847662).

Almost surely, 2^342181243 is an apocalyptic number.

342181243 is a deficient number, since it is larger than the sum of its proper divisors (1209405).

342181243 is a wasteful number, since it uses less digits than its factorization.

342181243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209404.

The product of its digits is 4608, while the sum is 28.

The square root of 342181243 is about 18498.1416093617. The cubic root of 342181243 is about 699.4425786832.

The spelling of 342181243 in words is "three hundred forty-two million, one hundred eighty-one thousand, two hundred forty-three".