8529012091 has 2 divisors, whose sum is σ = 8529012092. Its totient is φ = 8529012090.

The previous prime is 8529012073. The next prime is 8529012127. The reversal of 8529012091 is 1902109258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8529012091 - 2²¹ = 8526914939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8529012091.

It is not a weakly prime, because it can be changed into another prime (8529312091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4264506045 + 4264506046.

It is an arithmetic number, because the mean of its divisors is an integer number (4264506046).

Almost surely, 2^8529012091 is an apocalyptic number.

8529012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8529012091 is an equidigital number, since it uses as much as digits as its factorization.

8529012091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 8529012091 is about 92352.6506982880. The cubic root of 8529012091 is about 2043.1468230622.

The spelling of 8529012091 in words is "eight billion, five hundred twenty-nine million, twelve thousand, ninety-one".