88231109 has 2 divisors, whose sum is σ = 88231110. Its totient is φ = 88231108.

The previous prime is 88231093. The next prime is 88231147. The reversal of 88231109 is 90113288.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86676100 + 1555009 = 9310^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 88231109 - 2⁴ = 88231093 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88231159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44115554 + 44115555.

It is an arithmetic number, because the mean of its divisors is an integer number (44115555).

Almost surely, 2^88231109 is an apocalyptic number.

It is an amenable number.

88231109 is a deficient number, since it is larger than the sum of its proper divisors (1).

88231109 is an equidigital number, since it uses as much as digits as its factorization.

88231109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 88231109 is about 9393.1415937374. The cubic root of 88231109 is about 445.1850579046.

The spelling of 88231109 in words is "eighty-eight million, two hundred thirty-one thousand, one hundred nine".