801805153 has 8 divisors (see below), whose sum is σ = 849246120. Its totient is φ = 754394880.

The previous prime is 801805141. The next prime is 801805177. The reversal of 801805153 is 351508108.

It can be written as a sum of positive squares in 4 ways, for example, as 258309184 + 543495969 = 16072^2 + 23313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801805153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801865153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66903 + ... + 77971.

It is an arithmetic number, because the mean of its divisors is an integer number (106155765).

Almost surely, 2^801805153 is an apocalyptic number.

It is an amenable number.

801805153 is a deficient number, since it is larger than the sum of its proper divisors (47440967).

801805153 is a wasteful number, since it uses less digits than its factorization.

801805153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15347.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 801805153 is about 28316.1641646604. The cubic root of 801805153 is about 929.0154737078.

The spelling of 801805153 in words is "eight hundred one million, eight hundred five thousand, one hundred fifty-three".