1825159481 has 2 divisors, whose sum is σ = 1825159482. Its totient is φ = 1825159480.

The previous prime is 1825159429. The next prime is 1825159537. The reversal of 1825159481 is 1849515281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1790643856 + 34515625 = 42316^2 + 5875^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825159481 - 2³⁰ = 751417657 is a prime.

It is a super-2 number, since 2×1825159481² = 6662414262168378722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1825159681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912579740 + 912579741.

It is an arithmetic number, because the mean of its divisors is an integer number (912579741).

Almost surely, 2^1825159481 is an apocalyptic number.

It is an amenable number.

1825159481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825159481 is an equidigital number, since it uses as much as digits as its factorization.

1825159481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 44.

The square root of 1825159481 is about 42721.8852697303. The cubic root of 1825159481 is about 1222.0817903081.

The spelling of 1825159481 in words is "one billion, eight hundred twenty-five million, one hundred fifty-nine thousand, four hundred eighty-one".