1109601 has 6 divisors (see below), whose sum is σ = 1602770. Its totient is φ = 739728.

The previous prime is 1109579. The next prime is 1109609. The reversal of 1109601 is 1069011.

It can be written as a sum of positive squares in only one way, i.e., 767376 + 342225 = 876^2 + 585^2 .

It is not a de Polignac number, because 1109601 - 2⁷ = 1109473 is a prime.

It is a Duffinian number.

1109601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1109609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61636 + ... + 61653.

2^1109601 is an apocalyptic number.

It is an amenable number.

1109601 is a deficient number, since it is larger than the sum of its proper divisors (493169).

1109601 is a wasteful number, since it uses less digits than its factorization.

1109601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123295 (or 123292 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 1109601 is about 1053.3760012455. The cubic root of 1109601 is about 103.5274729282.

The spelling of 1109601 in words is "one million, one hundred nine thousand, six hundred one".