345523511 has 2 divisors, whose sum is σ = 345523512. Its totient is φ = 345523510.

The previous prime is 345523481. The next prime is 345523513. The reversal of 345523511 is 115325543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345523511 - 2²² = 341329207 is a prime.

Together with 345523513, 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 (345523513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172761755 + 172761756.

It is an arithmetic number, because the mean of its divisors is an integer number (172761756).

Almost surely, 2^345523511 is an apocalyptic number.

345523511 is a deficient number, since it is larger than the sum of its proper divisors (1).

345523511 is an equidigital number, since it uses as much as digits as its factorization.

345523511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 345523511 is about 18588.2627214057. The cubic root of 345523511 is about 701.7124813158.

The spelling of 345523511 in words is "three hundred forty-five million, five hundred twenty-three thousand, five hundred eleven".