11511045 has 64 divisors (see below), whose sum is σ = 25213440. Its totient is φ = 4852224.

The previous prime is 11511041. The next prime is 11511047. The reversal of 11511045 is 54011511.

It is a happy number.

11511045 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11511045 - 2² = 11511041 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11511041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11817 + ... + 12753.

It is an arithmetic number, because the mean of its divisors is an integer number (393960).

Almost surely, 2^11511045 is an apocalyptic number.

11511045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11511045 is an abundant number, since it is smaller than the sum of its proper divisors (13702395).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11511045 is a wasteful number, since it uses less digits than its factorization.

11511045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 11511045 is about 3392.7930971399. The cubic root of 11511045 is about 225.7901110833.

Adding to 11511045 its reverse (54011511), we get a palindrome (65522556).

The spelling of 11511045 in words is "eleven million, five hundred eleven thousand, forty-five".