102260989 has 8 divisors (see below), whose sum is σ = 106880760. Its totient is φ = 97714176.

The previous prime is 102260981. The next prime is 102260999. The reversal of 102260989 is 989062201.

It can be written as a sum of positive squares in 4 ways, for example, as 7198489 + 95062500 = 2683^2 + 9750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102260989 - 2³ = 102260981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102260981) 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 in 7 ways as a sum of consecutive naturals, for example, 15364 + ... + 20989.

It is an arithmetic number, because the mean of its divisors is an integer number (13360095).

Almost surely, 2^102260989 is an apocalyptic number.

It is an amenable number.

102260989 is a deficient number, since it is larger than the sum of its proper divisors (4619771).

102260989 is an equidigital number, since it uses as much as digits as its factorization.

102260989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36479.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 102260989 is about 10112.4175645589. The cubic root of 102260989 is about 467.6310387908.

The spelling of 102260989 in words is "one hundred two million, two hundred sixty thousand, nine hundred eighty-nine".