345612143 has 2 divisors, whose sum is σ = 345612144. Its totient is φ = 345612142.

The previous prime is 345612139. The next prime is 345612181. The reversal of 345612143 is 341216543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345612143 - 2² = 345612139 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345612133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172806071 + 172806072.

It is an arithmetic number, because the mean of its divisors is an integer number (172806072).

Almost surely, 2^345612143 is an apocalyptic number.

345612143 is a deficient number, since it is larger than the sum of its proper divisors (1).

345612143 is an equidigital number, since it uses as much as digits as its factorization.

345612143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 345612143 is about 18590.6466536267. The cubic root of 345612143 is about 701.7724761367.

Adding to 345612143 its reverse (341216543), we get a palindrome (686828686).

The spelling of 345612143 in words is "three hundred forty-five million, six hundred twelve thousand, one hundred forty-three".