2815061 has 2 divisors, whose sum is σ = 2815062. Its totient is φ = 2815060.

The previous prime is 2815049. The next prime is 2815069. The reversal of 2815061 is 1605182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1874161 + 940900 = 1369^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2815061 - 2¹⁸ = 2552917 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2815069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1407530 + 1407531.

It is an arithmetic number, because the mean of its divisors is an integer number (1407531).

2^2815061 is an apocalyptic number.

It is an amenable number.

2815061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2815061 is an equidigital number, since it uses as much as digits as its factorization.

2815061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2815061 is about 1677.8143520664. The cubic root of 2815061 is about 141.1982356592.

It can be divided in two parts, 281 and 5061, that multiplied together give a triangular number (1422141 = T₁₆₈₆).

The spelling of 2815061 in words is "two million, eight hundred fifteen thousand, sixty-one".