345205087 has 2 divisors, whose sum is σ = 345205088. Its totient is φ = 345205086.

The previous prime is 345205061. The next prime is 345205097. The reversal of 345205087 is 780502543.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (780502543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345205087 - 2¹⁵ = 345172319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345205027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172602543 + 172602544.

It is an arithmetic number, because the mean of its divisors is an integer number (172602544).

Almost surely, 2^345205087 is an apocalyptic number.

345205087 is a deficient number, since it is larger than the sum of its proper divisors (1).

345205087 is an equidigital number, since it uses as much as digits as its factorization.

345205087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 345205087 is about 18579.6955572474. The cubic root of 345205087 is about 701.4968560763.

The spelling of 345205087 in words is "three hundred forty-five million, two hundred five thousand, eighty-seven".