1102609 has 8 divisors (see below), whose sum is σ = 1152360. Its totient is φ = 1053696.

The previous prime is 1102583. The next prime is 1102663. The reversal of 1102609 is 9062011.

It can be written as a sum of positive squares in 4 ways, for example, as 342225 + 760384 = 585^2 + 872^2 .

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 1102609 - 2⁷ = 1102481 is a prime.

It is a Duffinian number.

1102609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1102669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5499 + ... + 5695.

It is an arithmetic number, because the mean of its divisors is an integer number (144045).

2^1102609 is an apocalyptic number.

It is an amenable number.

1102609 is a deficient number, since it is larger than the sum of its proper divisors (49751).

1102609 is a wasteful number, since it uses less digits than its factorization.

1102609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1102609 is about 1050.0519034791. The cubic root of 1102609 is about 103.3095597986.

It can be divided in two parts, 1102 and 609, that added together give a triangular number (1711 = T₅₈).

The spelling of 1102609 in words is "one million, one hundred two thousand, six hundred nine".