806156541 has 36 divisors (see below), whose sum is σ = 1257500244. Its totient is φ = 497433600.

The previous prime is 806156539. The next prime is 806156551. The reversal of 806156541 is 145651608.

806156541 is a `hidden beast` number, since 8 + 0 + 61 + 56 + 541 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 34928100 + 771228441 = 5910^2 + 27771^2 .

It is not a de Polignac number, because 806156541 - 2¹ = 806156539 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 806156496 and 806156505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806156501) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 156121 + ... + 161201.

Almost surely, 2^806156541 is an apocalyptic number.

It is an amenable number.

806156541 is a deficient number, since it is larger than the sum of its proper divisors (451343703).

806156541 is a wasteful number, since it uses less digits than its factorization.

806156541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5162 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 806156541 is about 28392.8959600813. The cubic root of 806156541 is about 930.6930283512.

The spelling of 806156541 in words is "eight hundred six million, one hundred fifty-six thousand, five hundred forty-one".