1825869061 has 2 divisors, whose sum is σ = 1825869062. Its totient is φ = 1825869060.

The previous prime is 1825869041. The next prime is 1825869077. The reversal of 1825869061 is 1609685281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1309716100 + 516152961 = 36190^2 + 22719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825869061 - 2²³ = 1817480453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825869041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912934530 + 912934531.

It is an arithmetic number, because the mean of its divisors is an integer number (912934531).

Almost surely, 2^1825869061 is an apocalyptic number.

It is an amenable number.

1825869061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825869061 is an equidigital number, since it uses as much as digits as its factorization.

1825869061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 1825869061 is about 42730.1891055961. The cubic root of 1825869061 is about 1222.2401422132.

The spelling of 1825869061 in words is "one billion, eight hundred twenty-five million, eight hundred sixty-nine thousand, sixty-one".