802000148549 has 2 divisors, whose sum is σ = 802000148550. Its totient is φ = 802000148548.

The previous prime is 802000148531. The next prime is 802000148623. The reversal of 802000148549 is 945841000208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712310680225 + 89689468324 = 843985^2 + 299482^2 .

It is a cyclic number.

It is not a de Polignac number, because 802000148549 - 2⁸ = 802000148293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802000148519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401000074274 + 401000074275.

It is an arithmetic number, because the mean of its divisors is an integer number (401000074275).

Almost surely, 2^802000148549 is an apocalyptic number.

It is an amenable number.

802000148549 is a deficient number, since it is larger than the sum of its proper divisors (1).

802000148549 is an equidigital number, since it uses as much as digits as its factorization.

802000148549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 802000148549 in words is "eight hundred two billion, one hundred forty-eight thousand, five hundred forty-nine".