1088258021 has 2 divisors, whose sum is σ = 1088258022. Its totient is φ = 1088258020.

The previous prime is 1088258011. The next prime is 1088258029. The reversal of 1088258021 is 1208528801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 865830625 + 222427396 = 29425^2 + 14914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088258021 - 2¹⁸ = 1087995877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088258029) 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, 544129010 + 544129011.

It is an arithmetic number, because the mean of its divisors is an integer number (544129011).

Almost surely, 2^1088258021 is an apocalyptic number.

It is an amenable number.

1088258021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088258021 is an equidigital number, since it uses as much as digits as its factorization.

1088258021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 1088258021 is about 32988.7559783633. The cubic root of 1088258021 is about 1028.5939343281.

The spelling of 1088258021 in words is "one billion, eighty-eight million, two hundred fifty-eight thousand, twenty-one".