345522623 has 2 divisors, whose sum is σ = 345522624. Its totient is φ = 345522622.

The previous prime is 345522601. The next prime is 345522641. The reversal of 345522623 is 326225543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345522623 - 2¹⁰ = 345521599 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345522623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345522323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172761311 + 172761312.

It is an arithmetic number, because the mean of its divisors is an integer number (172761312).

Almost surely, 2^345522623 is an apocalyptic number.

345522623 is a deficient number, since it is larger than the sum of its proper divisors (1).

345522623 is an equidigital number, since it uses as much as digits as its factorization.

345522623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 32.

The square root of 345522623 is about 18588.2388353496. The cubic root of 345522623 is about 701.7118801785.

The spelling of 345522623 in words is "three hundred forty-five million, five hundred twenty-two thousand, six hundred twenty-three".