1185413 has 4 divisors (see below), whose sum is σ = 1204908. Its totient is φ = 1165920.

The previous prime is 1185403. The next prime is 1185439. The reversal of 1185413 is 3145811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3145811 = 19 ⋅165569.

It can be written as a sum of positive squares in 2 ways, for example, as 66049 + 1119364 = 257^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185413 - 2¹⁴ = 1169029 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185403) 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, 9656 + ... + 9777.

It is an arithmetic number, because the mean of its divisors is an integer number (301227).

2^1185413 is an apocalyptic number.

It is an amenable number.

1185413 is a deficient number, since it is larger than the sum of its proper divisors (19495).

1185413 is an equidigital number, since it uses as much as digits as its factorization.

1185413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19494.

The product of its digits is 480, while the sum is 23.

The square root of 1185413 is about 1088.7667335109. The cubic root of 1185413 is about 105.8335169912.

The spelling of 1185413 in words is "one million, one hundred eighty-five thousand, four hundred thirteen".