345315287 has 2 divisors, whose sum is σ = 345315288. Its totient is φ = 345315286.

The previous prime is 345315221. The next prime is 345315343. The reversal of 345315287 is 782513543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345315287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345315287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345314287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172657643 + 172657644.

It is an arithmetic number, because the mean of its divisors is an integer number (172657644).

Almost surely, 2^345315287 is an apocalyptic number.

345315287 is a deficient number, since it is larger than the sum of its proper divisors (1).

345315287 is an equidigital number, since it uses as much as digits as its factorization.

345315287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 345315287 is about 18582.6609235599. The cubic root of 345315287 is about 701.5714945370.

The spelling of 345315287 in words is "three hundred forty-five million, three hundred fifteen thousand, two hundred eighty-seven".