815275241 has 16 divisors (see below), whose sum is σ = 896987520. Its totient is φ = 734858880.

The previous prime is 815275217. The next prime is 815275243. The reversal of 815275241 is 142572518.

It is a cyclic number.

It is not a de Polignac number, because 815275241 - 2²² = 811080937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (815275243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950885 + ... + 951741.

It is an arithmetic number, because the mean of its divisors is an integer number (56061720).

Almost surely, 2^815275241 is an apocalyptic number.

It is an amenable number.

815275241 is a deficient number, since it is larger than the sum of its proper divisors (81712279).

815275241 is a wasteful number, since it uses less digits than its factorization.

815275241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504.

The product of its digits is 22400, while the sum is 35.

The square root of 815275241 is about 28553.0250761631. The cubic root of 815275241 is about 934.1890042210.

It can be divided in two parts, 81527 and 5241, that added together give a palindrome (86768).

The spelling of 815275241 in words is "eight hundred fifteen million, two hundred seventy-five thousand, two hundred forty-one".