345503017 has 2 divisors, whose sum is σ = 345503018. Its totient is φ = 345503016.

The previous prime is 345502999. The next prime is 345503047. The reversal of 345503017 is 710305543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296838441 + 48664576 = 17229^2 + 6976^2 .

It is a cyclic number.

It is not a de Polignac number, because 345503017 - 2²⁷ = 211285289 is a prime.

It is a super-2 number, since 2×345503017² = 238744669512204578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345503047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172751508 + 172751509.

It is an arithmetic number, because the mean of its divisors is an integer number (172751509).

Almost surely, 2^345503017 is an apocalyptic number.

It is an amenable number.

345503017 is a deficient number, since it is larger than the sum of its proper divisors (1).

345503017 is an equidigital number, since it uses as much as digits as its factorization.

345503017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 345503017 is about 18587.7114513864. The cubic root of 345503017 is about 701.6986075084.

The spelling of 345503017 in words is "three hundred forty-five million, five hundred three thousand, seventeen".