1102489109 has 4 divisors (see below), whose sum is σ = 1103170860. Its totient is φ = 1101807360.

The previous prime is 1102489067. The next prime is 1102489121. The reversal of 1102489109 is 9019842011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 415262884 + 687226225 = 20378^2 + 26215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102489109 - 2¹⁶ = 1102423573 is a prime.

It is a super-2 number, since 2×1102489109² = 2430964470927227762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102489189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338444 + ... + 341685.

It is an arithmetic number, because the mean of its divisors is an integer number (275792715).

Almost surely, 2^1102489109 is an apocalyptic number.

It is an amenable number.

1102489109 is a deficient number, since it is larger than the sum of its proper divisors (681751).

1102489109 is an equidigital number, since it uses as much as digits as its factorization.

1102489109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681750.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1102489109 is about 33203.7514296201. The cubic root of 1102489109 is about 1033.0581524502.

The spelling of 1102489109 in words is "one billion, one hundred two million, four hundred eighty-nine thousand, one hundred nine".