402529 has 2 divisors, whose sum is σ = 402530. Its totient is φ = 402528.

The previous prime is 402527. The next prime is 402541. The reversal of 402529 is 925204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388129 + 14400 = 623^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 402529 - 2¹ = 402527 is a prime.

Together with 402527, it forms a pair of twin primes.

It is a Chen prime.

402529 is a lucky number.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (402527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201264 + 201265.

It is an arithmetic number, because the mean of its divisors is an integer number (201265).

2⁴⁰²⁵²⁹ is an apocalyptic number.

It is an amenable number.

402529 is a deficient number, since it is larger than the sum of its proper divisors (1).

402529 is an equidigital number, since it uses as much as digits as its factorization.

402529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 402529 is about 634.4517318126. The cubic root of 402529 is about 73.8355857885.

The spelling of 402529 in words is "four hundred two thousand, five hundred twenty-nine".