11918045 has 8 divisors (see below), whose sum is σ = 14356440. Its totient is φ = 9497920.

The previous prime is 11917993. The next prime is 11918051. The reversal of 11918045 is 54081911.

It can be written as a sum of positive squares in 4 ways, for example, as 1792921 + 10125124 = 1339^2 + 3182^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11918045 - 2¹⁴ = 11901661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11917999 and 11918017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3086 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (1794555).

Almost surely, 2^11918045 is an apocalyptic number.

It is an amenable number.

11918045 is a deficient number, since it is larger than the sum of its proper divisors (2438395).

11918045 is an equidigital number, since it uses as much as digits as its factorization.

11918045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9135.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 11918045 is about 3452.2521634435. The cubic root of 11918045 is about 228.4204627197.

Adding to 11918045 its reverse (54081911), we get a palindrome (65999956).

The spelling of 11918045 in words is "eleven million, nine hundred eighteen thousand, forty-five".