345650491 has 2 divisors, whose sum is σ = 345650492. Its totient is φ = 345650490.

The previous prime is 345650483. The next prime is 345650537. The reversal of 345650491 is 194056543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345650491 - 2³ = 345650483 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345650491.

It is not a weakly prime, because it can be changed into another prime (345650441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172825245 + 172825246.

It is an arithmetic number, because the mean of its divisors is an integer number (172825246).

Almost surely, 2^345650491 is an apocalyptic number.

345650491 is a deficient number, since it is larger than the sum of its proper divisors (1).

345650491 is an equidigital number, since it uses as much as digits as its factorization.

345650491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 345650491 is about 18591.6780038812. The cubic root of 345650491 is about 701.7984306411.

The spelling of 345650491 in words is "three hundred forty-five million, six hundred fifty thousand, four hundred ninety-one".