345540511 has 2 divisors, whose sum is σ = 345540512. Its totient is φ = 345540510.

The previous prime is 345540509. The next prime is 345540527. The reversal of 345540511 is 115045543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345540511 - 2¹ = 345540509 is a prime.

It is a super-2 number, since 2×345540511² = 238796489484282242, which contains 22 as substring.

Together with 345540509, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345540511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345540551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172770255 + 172770256.

It is an arithmetic number, because the mean of its divisors is an integer number (172770256).

Almost surely, 2^345540511 is an apocalyptic number.

345540511 is a deficient number, since it is larger than the sum of its proper divisors (1).

345540511 is an equidigital number, since it uses as much as digits as its factorization.

345540511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 345540511 is about 18588.7199935875. The cubic root of 345540511 is about 701.7239893765.

The spelling of 345540511 in words is "three hundred forty-five million, five hundred forty thousand, five hundred eleven".