1358109 has 6 divisors (see below), whose sum is σ = 1961726. Its totient is φ = 905400.

The previous prime is 1358087. The next prime is 1358111. The reversal of 1358109 is 9018531.

It can be written as a sum of positive squares in only one way, i.e., 1258884 + 99225 = 1122^2 + 315^2 .

It is not a de Polignac number, because 1358109 - 2¹² = 1354013 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 (1358179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75442 + ... + 75459.

2^1358109 is an apocalyptic number.

It is an amenable number.

1358109 is a deficient number, since it is larger than the sum of its proper divisors (603617).

1358109 is a wasteful number, since it uses less digits than its factorization.

1358109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150907 (or 150904 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1358109 is about 1165.3793373833. The cubic root of 1358109 is about 110.7417908571.

The spelling of 1358109 in words is "one million, three hundred fifty-eight thousand, one hundred nine".