245095811 has 2 divisors, whose sum is σ = 245095812. Its totient is φ = 245095810.

The previous prime is 245095789. The next prime is 245095859. The reversal of 245095811 is 118590542.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245095811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245098811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122547905 + 122547906.

It is an arithmetic number, because the mean of its divisors is an integer number (122547906).

Almost surely, 2^245095811 is an apocalyptic number.

245095811 is a deficient number, since it is larger than the sum of its proper divisors (1).

245095811 is an equidigital number, since it uses as much as digits as its factorization.

245095811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 245095811 is about 15655.5361134648. The cubic root of 245095811 is about 625.8140313577.

The spelling of 245095811 in words is "two hundred forty-five million, ninety-five thousand, eight hundred eleven".