800936145 has 12 divisors (see below), whose sum is σ = 1388289396. Its totient is φ = 427165920.

The previous prime is 800936141. The next prime is 800936177. The reversal of 800936145 is 541639008.

It can be written as a sum of positive squares in 2 ways, for example, as 511800129 + 289136016 = 22623^2 + 17004^2 .

It is not a de Polignac number, because 800936145 - 2² = 800936141 is a prime.

It is a super-2 number, since 2×800936145² = 1282997416734922050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (800936141) 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 in 11 ways as a sum of consecutive naturals, for example, 8899246 + ... + 8899335.

It is an arithmetic number, because the mean of its divisors is an integer number (115690783).

Almost surely, 2^800936145 is an apocalyptic number.

It is an amenable number.

800936145 is a deficient number, since it is larger than the sum of its proper divisors (587353251).

800936145 is a wasteful number, since it uses less digits than its factorization.

800936145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17798592 (or 17798589 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 800936145 is about 28300.8152709423. The cubic root of 800936145 is about 928.6797255883.

The spelling of 800936145 in words is "eight hundred million, nine hundred thirty-six thousand, one hundred forty-five".