815141 has 2 divisors, whose sum is σ = 815142. Its totient is φ = 815140.

The previous prime is 815123. The next prime is 815149. The reversal of 815141 is 141518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 198916 = 785^2 + 446^2 .

It is a cyclic number.

It is not a de Polignac number, because 815141 - 2¹⁴ = 798757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (815149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407570 + 407571.

It is an arithmetic number, because the mean of its divisors is an integer number (407571).

2⁸¹⁵¹⁴¹ is an apocalyptic number.

It is an amenable number.

815141 is a deficient number, since it is larger than the sum of its proper divisors (1).

815141 is an equidigital number, since it uses as much as digits as its factorization.

815141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 160, while the sum is 20.

The square root of 815141 is about 902.8515935634. The cubic root of 815141 is about 93.4137727734.

Adding to 815141 its reverse (141518), we get a palindrome (956659).

It can be divided in two parts, 8151 and 41, that added together give a 13-th power (8192 = 2¹³).

The spelling of 815141 in words is "eight hundred fifteen thousand, one hundred forty-one".