981339529 has 2 divisors, whose sum is σ = 981339530. Its totient is φ = 981339528.

The previous prime is 981339521. The next prime is 981339547. The reversal of 981339529 is 925933189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833765625 + 147573904 = 28875^2 + 12148^2 .

It is a cyclic number.

It is not a de Polignac number, because 981339529 - 2³ = 981339521 is a prime.

It is not a weakly prime, because it can be changed into another prime (981339521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490669764 + 490669765.

It is an arithmetic number, because the mean of its divisors is an integer number (490669765).

Almost surely, 2^981339529 is an apocalyptic number.

It is an amenable number.

981339529 is a deficient number, since it is larger than the sum of its proper divisors (1).

981339529 is an equidigital number, since it uses as much as digits as its factorization.

981339529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The square root of 981339529 is about 31326.3392211730. The cubic root of 981339529 is about 993.7407464877.

The spelling of 981339529 in words is "nine hundred eighty-one million, three hundred thirty-nine thousand, five hundred twenty-nine".