11507085 has 12 divisors (see below), whose sum is σ = 19945692. Its totient is φ = 6137088.

The previous prime is 11507071. The next prime is 11507087. The reversal of 11507085 is 58070511.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 3316041 = 2862^2 + 1821^2 .

It is not a de Polignac number, because 11507085 - 2⁵ = 11507053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11507087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127812 + ... + 127901.

It is an arithmetic number, because the mean of its divisors is an integer number (1662141).

Almost surely, 2^11507085 is an apocalyptic number.

11507085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11507085 is a deficient number, since it is larger than the sum of its proper divisors (8438607).

11507085 is a wasteful number, since it uses less digits than its factorization.

11507085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255724 (or 255721 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 11507085 is about 3392.2094569764. The cubic root of 11507085 is about 225.7642162032.

Adding to 11507085 its reverse (58070511), we get a palindrome (69577596).

The spelling of 11507085 in words is "eleven million, five hundred seven thousand, eighty-five".