815352153481 has 2 divisors, whose sum is σ = 815352153482. Its totient is φ = 815352153480.

The previous prime is 815352153461. The next prime is 815352153487. The reversal of 815352153481 is 184351253518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568303391881 + 247048761600 = 753859^2 + 497040^2 .

It is a cyclic number.

It is not a de Polignac number, because 815352153481 - 2⁹ = 815352152969 is a prime.

It is a super-2 number, since 2×815352153481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (815352153487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407676076740 + 407676076741.

It is an arithmetic number, because the mean of its divisors is an integer number (407676076741).

Almost surely, 2^815352153481 is an apocalyptic number.

It is an amenable number.

815352153481 is a deficient number, since it is larger than the sum of its proper divisors (1).

815352153481 is an equidigital number, since it uses as much as digits as its factorization.

815352153481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 46.

The spelling of 815352153481 in words is "eight hundred fifteen billion, three hundred fifty-two million, one hundred fifty-three thousand, four hundred eighty-one".