1611413 has 4 divisors (see below), whose sum is σ = 1706220. Its totient is φ = 1516608.

The previous prime is 1611397. The next prime is 1611419. The reversal of 1611413 is 3141161.

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 1387684 + 223729 = 1178^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611413 - 2⁴ = 1611397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 94789 = 1611413 / (1 + 6 + 1 + 1 + 4 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1611391 and 1611400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611419) 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, 47378 + ... + 47411.

It is an arithmetic number, because the mean of its divisors is an integer number (426555).

2^1611413 is an apocalyptic number.

It is an amenable number.

1611413 is a deficient number, since it is larger than the sum of its proper divisors (94807).

1611413 is an equidigital number, since it uses as much as digits as its factorization.

1611413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94806.

The product of its digits is 72, while the sum is 17.

The square root of 1611413 is about 1269.4144319331. The cubic root of 1611413 is about 117.2381493532.

Adding to 1611413 its reverse (3141161), we get a palindrome (4752574).

The spelling of 1611413 in words is "one million, six hundred eleven thousand, four hundred thirteen".