345351971 has 2 divisors, whose sum is σ = 345351972. Its totient is φ = 345351970.

The previous prime is 345351967. The next prime is 345351983. The reversal of 345351971 is 179153543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345351971 - 2² = 345351967 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345351271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172675985 + 172675986.

It is an arithmetic number, because the mean of its divisors is an integer number (172675986).

Almost surely, 2^345351971 is an apocalyptic number.

345351971 is a deficient number, since it is larger than the sum of its proper divisors (1).

345351971 is an equidigital number, since it uses as much as digits as its factorization.

345351971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 345351971 is about 18583.6479465147. The cubic root of 345351971 is about 701.5963370875.

The spelling of 345351971 in words is "three hundred forty-five million, three hundred fifty-one thousand, nine hundred seventy-one".