345717941 has 2 divisors, whose sum is σ = 345717942. Its totient is φ = 345717940.

The previous prime is 345717937. The next prime is 345717943. The reversal of 345717941 is 149717543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344102500 + 1615441 = 18550^2 + 1271^2 .

It is an emirp because it is prime and its reverse (149717543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345717941 - 2² = 345717937 is a prime.

Together with 345717943, 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 (345717943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172858970 + 172858971.

It is an arithmetic number, because the mean of its divisors is an integer number (172858971).

Almost surely, 2^345717941 is an apocalyptic number.

It is an amenable number.

345717941 is a deficient number, since it is larger than the sum of its proper divisors (1).

345717941 is an equidigital number, since it uses as much as digits as its factorization.

345717941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 345717941 is about 18593.4918990490. The cubic root of 345717941 is about 701.8440771604.

The spelling of 345717941 in words is "three hundred forty-five million, seven hundred seventeen thousand, nine hundred forty-one".