345144311 has 2 divisors, whose sum is σ = 345144312. Its totient is φ = 345144310.

The previous prime is 345144307. The next prime is 345144313. The reversal of 345144311 is 113441543.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345144311 - 2² = 345144307 is a prime.

It is a Sophie Germain prime.

Together with 345144313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345144313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172572155 + 172572156.

It is an arithmetic number, because the mean of its divisors is an integer number (172572156).

Almost surely, 2^345144311 is an apocalyptic number.

345144311 is a deficient number, since it is larger than the sum of its proper divisors (1).

345144311 is an equidigital number, since it uses as much as digits as its factorization.

345144311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 345144311 is about 18578.0599363873. The cubic root of 345144311 is about 701.4556856950.

Adding to 345144311 its reverse (113441543), we get a palindrome (458585854).

The spelling of 345144311 in words is "three hundred forty-five million, one hundred forty-four thousand, three hundred eleven".