147805811 has 2 divisors, whose sum is σ = 147805812. Its totient is φ = 147805810.

The previous prime is 147805783. The next prime is 147805873. The reversal of 147805811 is 118508741.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147805811 - 2⁶ = 147805747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147805111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73902905 + 73902906.

It is an arithmetic number, because the mean of its divisors is an integer number (73902906).

Almost surely, 2^147805811 is an apocalyptic number.

147805811 is a deficient number, since it is larger than the sum of its proper divisors (1).

147805811 is an equidigital number, since it uses as much as digits as its factorization.

147805811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 35.

The square root of 147805811 is about 12157.5413221589. The cubic root of 147805811 is about 528.7257998898.

The spelling of 147805811 in words is "one hundred forty-seven million, eight hundred five thousand, eight hundred eleven".