11505073 has 8 divisors (see below), whose sum is σ = 12309192. Its totient is φ = 10715136.

The previous prime is 11505071. The next prime is 11505121. The reversal of 11505073 is 37050511.

It can be written as a sum of positive squares in 4 ways, for example, as 1373584 + 10131489 = 1172^2 + 3183^2 .

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 11505073 - 2¹ = 11505071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11505071) 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, 1840 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (1538649).

Almost surely, 2^11505073 is an apocalyptic number.

It is an amenable number.

11505073 is a deficient number, since it is larger than the sum of its proper divisors (804119).

11505073 is an equidigital number, since it uses as much as digits as its factorization.

11505073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 11505073 is about 3391.9128821360. The cubic root of 11505073 is about 225.7510572354.

Adding to 11505073 its reverse (37050511), we get a palindrome (48555584).

The spelling of 11505073 in words is "eleven million, five hundred five thousand, seventy-three".