345122377 has 2 divisors, whose sum is σ = 345122378. Its totient is φ = 345122376.

The previous prime is 345122369. The next prime is 345122419. The reversal of 345122377 is 773221543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339628041 + 5494336 = 18429^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 345122377 - 2³ = 345122369 is a prime.

It is a super-2 number, since 2×345122377² = 238218910212260258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345122357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172561188 + 172561189.

It is an arithmetic number, because the mean of its divisors is an integer number (172561189).

Almost surely, 2^345122377 is an apocalyptic number.

It is an amenable number.

345122377 is a deficient number, since it is larger than the sum of its proper divisors (1).

345122377 is an equidigital number, since it uses as much as digits as its factorization.

345122377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 34.

The square root of 345122377 is about 18577.4696070267. The cubic root of 345122377 is about 701.4408261570.

The spelling of 345122377 in words is "three hundred forty-five million, one hundred twenty-two thousand, three hundred seventy-seven".