345729211 has 2 divisors, whose sum is σ = 345729212. Its totient is φ = 345729210.

The previous prime is 345729173. The next prime is 345729217. The reversal of 345729211 is 112927543.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (112927543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345729211 - 2¹¹ = 345727163 is a prime.

It is not a weakly prime, because it can be changed into another prime (345729217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172864605 + 172864606.

It is an arithmetic number, because the mean of its divisors is an integer number (172864606).

Almost surely, 2^345729211 is an apocalyptic number.

345729211 is a deficient number, since it is larger than the sum of its proper divisors (1).

345729211 is an equidigital number, since it uses as much as digits as its factorization.

345729211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 345729211 is about 18593.7949596095. The cubic root of 345729211 is about 701.8517035092.

The spelling of 345729211 in words is "three hundred forty-five million, seven hundred twenty-nine thousand, two hundred eleven".