11618051 has 4 divisors (see below), whose sum is σ = 11625504. Its totient is φ = 11610600.

The previous prime is 11618039. The next prime is 11618069. The reversal of 11618051 is 15081611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 15081611 = 19 ⋅793769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11618051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11618081) 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, 395 + ... + 4836.

It is an arithmetic number, because the mean of its divisors is an integer number (2906376).

Almost surely, 2^11618051 is an apocalyptic number.

11618051 is a deficient number, since it is larger than the sum of its proper divisors (7453).

11618051 is an equidigital number, since it uses as much as digits as its factorization.

11618051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7452.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 11618051 is about 3408.5262211108. The cubic root of 11618051 is about 226.4875981430.

Adding to 11618051 its reverse (15081611), we get a palindrome (26699662).

The spelling of 11618051 in words is "eleven million, six hundred eighteen thousand, fifty-one".