345620227 has 2 divisors, whose sum is σ = 345620228. Its totient is φ = 345620226.

The previous prime is 345620221. The next prime is 345620239. The reversal of 345620227 is 722026543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345620227 - 2²³ = 337231619 is a prime.

It is not a weakly prime, because it can be changed into another prime (345620221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172810113 + 172810114.

It is an arithmetic number, because the mean of its divisors is an integer number (172810114).

Almost surely, 2^345620227 is an apocalyptic number.

345620227 is a deficient number, since it is larger than the sum of its proper divisors (1).

345620227 is an equidigital number, since it uses as much as digits as its factorization.

345620227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 345620227 is about 18590.8640735174. The cubic root of 345620227 is about 701.7779476695. Note that the first 3 decimals are identical.

The spelling of 345620227 in words is "three hundred forty-five million, six hundred twenty thousand, two hundred twenty-seven".