981009529 has 2 divisors, whose sum is σ = 981009530. Its totient is φ = 981009528.

The previous prime is 981009517. The next prime is 981009553. The reversal of 981009529 is 925900189.

981009529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682411129 + 298598400 = 26123^2 + 17280^2 .

It is a cyclic number.

It is not a de Polignac number, because 981009529 - 2²³ = 972620921 is a prime.

It is not a weakly prime, because it can be changed into another prime (981009509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490504764 + 490504765.

It is an arithmetic number, because the mean of its divisors is an integer number (490504765).

Almost surely, 2^981009529 is an apocalyptic number.

It is an amenable number.

981009529 is a deficient number, since it is larger than the sum of its proper divisors (1).

981009529 is an equidigital number, since it uses as much as digits as its factorization.

981009529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 981009529 is about 31321.0716451401. The cubic root of 981009529 is about 993.6293439261.

The spelling of 981009529 in words is "nine hundred eighty-one million, nine thousand, five hundred twenty-nine".