345115999 has 2 divisors, whose sum is σ = 345116000. Its totient is φ = 345115998.

The previous prime is 345115961. The next prime is 345116017. The reversal of 345115999 is 999511543.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (999511543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345115999 - 2¹⁹ = 344591711 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345115699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172557999 + 172558000.

It is an arithmetic number, because the mean of its divisors is an integer number (172558000).

Almost surely, 2^345115999 is an apocalyptic number.

345115999 is a deficient number, since it is larger than the sum of its proper divisors (1).

345115999 is an equidigital number, since it uses as much as digits as its factorization.

345115999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 218700, while the sum is 46.

The square root of 345115999 is about 18577.2979466875. The cubic root of 345115999 is about 701.4365051611.

The spelling of 345115999 in words is "three hundred forty-five million, one hundred fifteen thousand, nine hundred ninety-nine".