345857143 has 4 divisors (see below), whose sum is σ = 346614400. Its totient is φ = 345099888.

The previous prime is 345857131. The next prime is 345857201. The reversal of 345857143 is 341758543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341758543 = 7 ⋅48822649.

It is a cyclic number.

It is not a de Polignac number, because 345857143 - 2⁹ = 345856631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345857096 and 345857105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345858143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377943 + ... + 378856.

It is an arithmetic number, because the mean of its divisors is an integer number (86653600).

Almost surely, 2^345857143 is an apocalyptic number.

345857143 is a deficient number, since it is larger than the sum of its proper divisors (757257).

345857143 is an equidigital number, since it uses as much as digits as its factorization.

345857143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757256.

The product of its digits is 201600, while the sum is 40.

The square root of 345857143 is about 18597.2348213384. The cubic root of 345857143 is about 701.9382627936.

The spelling of 345857143 in words is "three hundred forty-five million, eight hundred fifty-seven thousand, one hundred forty-three".