345320143 has 8 divisors (see below), whose sum is σ = 403829888. Its totient is φ = 289104984.

The previous prime is 345320141. The next prime is 345320153. The reversal of 345320143 is 341023543.

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

It is not a de Polignac number, because 345320143 - 2¹ = 345320141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345320141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573321 + ... + 573922.

It is an arithmetic number, because the mean of its divisors is an integer number (50478736).

Almost surely, 2^345320143 is an apocalyptic number.

345320143 is a deficient number, since it is larger than the sum of its proper divisors (58509745).

345320143 is a wasteful number, since it uses less digits than its factorization.

345320143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147293.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 345320143 is about 18582.7915825368. The cubic root of 345320143 is about 701.5747831405.

Adding to 345320143 its reverse (341023543), we get a palindrome (686343686).

The spelling of 345320143 in words is "three hundred forty-five million, three hundred twenty thousand, one hundred forty-three".