11813045 has 8 divisors (see below), whose sum is σ = 15009624. Its totient is φ = 8894464.

The previous prime is 11813033. The next prime is 11813047. The reversal of 11813045 is 54031811.

It can be written as a sum of positive squares in 4 ways, for example, as 130321 + 11682724 = 361^2 + 3418^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11813045 - 2⁴ = 11813029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11813045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69404 + ... + 69573.

It is an arithmetic number, because the mean of its divisors is an integer number (1876203).

Almost surely, 2^11813045 is an apocalyptic number.

It is an amenable number.

11813045 is a deficient number, since it is larger than the sum of its proper divisors (3196579).

11813045 is a wasteful number, since it uses less digits than its factorization.

11813045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138999.

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

The square root of 11813045 is about 3437.0110561358. The cubic root of 11813045 is about 227.7476753574.

Adding to 11813045 its reverse (54031811), we get a palindrome (65844856).

The spelling of 11813045 in words is "eleven million, eight hundred thirteen thousand, forty-five".