1026534521 has 2 divisors, whose sum is σ = 1026534522. Its totient is φ = 1026534520.

The previous prime is 1026534517. The next prime is 1026534539. The reversal of 1026534521 is 1254356201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891858496 + 134676025 = 29864^2 + 11605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026534521 - 2² = 1026534517 is a prime.

It is not a weakly prime, because it can be changed into another prime (1026534221) 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, 513267260 + 513267261.

It is an arithmetic number, because the mean of its divisors is an integer number (513267261).

Almost surely, 2^1026534521 is an apocalyptic number.

It is an amenable number.

1026534521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026534521 is an equidigital number, since it uses as much as digits as its factorization.

1026534521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1026534521 is about 32039.5774160647. The cubic root of 1026534521 is about 1008.7677423588.

The spelling of 1026534521 in words is "one billion, twenty-six million, five hundred thirty-four thousand, five hundred twenty-one".