345340143 has 12 divisors (see below), whose sum is σ = 525078840. Its totient is φ = 218109456.

The previous prime is 345340141. The next prime is 345340153. The reversal of 345340143 is 341043543.

It is not a de Polignac number, because 345340143 - 2¹ = 345340141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345340141) 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 11 ways as a sum of consecutive naturals, for example, 1009596 + ... + 1009937.

It is an arithmetic number, because the mean of its divisors is an integer number (43756570).

Almost surely, 2^345340143 is an apocalyptic number.

345340143 is a deficient number, since it is larger than the sum of its proper divisors (179738697).

345340143 is a wasteful number, since it uses less digits than its factorization.

345340143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019558 (or 2019555 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 345340143 is about 18583.3297070251. The cubic root of 345340143 is about 701.5883273111.

Adding to 345340143 its reverse (341043543), we get a palindrome (686383686).

The spelling of 345340143 in words is "three hundred forty-five million, three hundred forty thousand, one hundred forty-three".