981527 has 2 divisors, whose sum is σ = 981528. Its totient is φ = 981526.

The previous prime is 981523. The next prime is 981569. The reversal of 981527 is 725189.

It is a weak prime.

It is an emirp because it is prime and its reverse (725189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 981527 - 2² = 981523 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 981493 and 981502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490763 + 490764.

It is an arithmetic number, because the mean of its divisors is an integer number (490764).

2⁹⁸¹⁵²⁷ is an apocalyptic number.

981527 is a deficient number, since it is larger than the sum of its proper divisors (1).

981527 is an equidigital number, since it uses as much as digits as its factorization.

981527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 981527 is about 990.7204449288. The cubic root of 981527 is about 99.3804022484.

The spelling of 981527 in words is "nine hundred eighty-one thousand, five hundred twenty-seven".