815061 has 8 divisors (see below), whose sum is σ = 1170400. Its totient is φ = 501552.

The previous prime is 815053. The next prime is 815063. The reversal of 815061 is 160518.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 815061 - 2³ = 815053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815063) 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 7 ways as a sum of consecutive naturals, for example, 10411 + ... + 10488.

It is an arithmetic number, because the mean of its divisors is an integer number (146300).

2⁸¹⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

815061 is a deficient number, since it is larger than the sum of its proper divisors (355339).

815061 is a wasteful number, since it uses less digits than its factorization.

815061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20915.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 815061 is about 902.8072884066. The cubic root of 815061 is about 93.4107167188.

Adding to 815061 its reverse (160518), we get a palindrome (975579).

The spelling of 815061 in words is "eight hundred fifteen thousand, sixty-one".