1025818429 has 2 divisors, whose sum is σ = 1025818430. Its totient is φ = 1025818428.

The previous prime is 1025818399. The next prime is 1025818477. The reversal of 1025818429 is 9248185201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867008025 + 158810404 = 29445^2 + 12602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025818429 - 2¹⁹ = 1025294141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025818391 and 1025818400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025818499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512909214 + 512909215.

It is an arithmetic number, because the mean of its divisors is an integer number (512909215).

Almost surely, 2^1025818429 is an apocalyptic number.

It is an amenable number.

1025818429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025818429 is an equidigital number, since it uses as much as digits as its factorization.

1025818429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 1025818429 is about 32028.4003503141. The cubic root of 1025818429 is about 1008.5331217229.

The spelling of 1025818429 in words is "one billion, twenty-five million, eight hundred eighteen thousand, four hundred twenty-nine".