345311279 has 2 divisors, whose sum is σ = 345311280. Its totient is φ = 345311278.

The previous prime is 345311261. The next prime is 345311347. The reversal of 345311279 is 972113543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345311279 - 2⁸ = 345311023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345311249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172655639 + 172655640.

It is an arithmetic number, because the mean of its divisors is an integer number (172655640).

Almost surely, 2^345311279 is an apocalyptic number.

345311279 is a deficient number, since it is larger than the sum of its proper divisors (1).

345311279 is an equidigital number, since it uses as much as digits as its factorization.

345311279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 345311279 is about 18582.5530807798. The cubic root of 345311279 is about 701.5687801969.

The spelling of 345311279 in words is "three hundred forty-five million, three hundred eleven thousand, two hundred seventy-nine".