815241673 has 2 divisors, whose sum is σ = 815241674. Its totient is φ = 815241672.

The previous prime is 815241659. The next prime is 815241697. The reversal of 815241673 is 376142518.

815241673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 582160384 + 233081289 = 24128^2 + 15267^2 .

It is a cyclic number.

It is not a de Polignac number, because 815241673 - 2¹³ = 815233481 is a prime.

It is not a weakly prime, because it can be changed into another prime (815241373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407620836 + 407620837.

It is an arithmetic number, because the mean of its divisors is an integer number (407620837).

Almost surely, 2^815241673 is an apocalyptic number.

It is an amenable number.

815241673 is a deficient number, since it is larger than the sum of its proper divisors (1).

815241673 is an equidigital number, since it uses as much as digits as its factorization.

815241673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 815241673 is about 28552.4372514852. The cubic root of 815241673 is about 934.1761826668.

The spelling of 815241673 in words is "eight hundred fifteen million, two hundred forty-one thousand, six hundred seventy-three".