1089888901 has 2 divisors, whose sum is σ = 1089888902. Its totient is φ = 1089888900.

The previous prime is 1089888889. The next prime is 1089888913. The reversal of 1089888901 is 1098889801.

It is a balanced prime because it is at equal distance from previous prime (1089888889) and next prime (1089888913).

It can be written as a sum of positive squares in only one way, i.e., 920212225 + 169676676 = 30335^2 + 13026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089888901 - 2⁵ = 1089888869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089888931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544944450 + 544944451.

It is an arithmetic number, because the mean of its divisors is an integer number (544944451).

Almost surely, 2^1089888901 is an apocalyptic number.

It is an amenable number.

1089888901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089888901 is an equidigital number, since it uses as much as digits as its factorization.

1089888901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 52.

The square root of 1089888901 is about 33013.4654497222. The cubic root of 1089888901 is about 1029.1075000321.

It can be divided in two parts, 10898 and 88901, that added together give a palindrome (99799).

The spelling of 1089888901 in words is "one billion, eighty-nine million, eight hundred eighty-eight thousand, nine hundred one".