345173377 has 2 divisors, whose sum is σ = 345173378. Its totient is φ = 345173376.

The previous prime is 345173371. The next prime is 345173393. The reversal of 345173377 is 773371543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344325136 + 848241 = 18556^2 + 921^2 .

It is a cyclic number.

It is not a de Polignac number, because 345173377 - 2³ = 345173369 is a prime.

It is not a weakly prime, because it can be changed into another prime (345173371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172586688 + 172586689.

It is an arithmetic number, because the mean of its divisors is an integer number (172586689).

Almost surely, 2^345173377 is an apocalyptic number.

It is an amenable number.

345173377 is a deficient number, since it is larger than the sum of its proper divisors (1).

345173377 is an equidigital number, since it uses as much as digits as its factorization.

345173377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 40.

The square root of 345173377 is about 18578.8421867457. The cubic root of 345173377 is about 701.4753759501.

The spelling of 345173377 in words is "three hundred forty-five million, one hundred seventy-three thousand, three hundred seventy-seven".