11500965 has 48 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5072256.

The previous prime is 11500963. The next prime is 11500967. The reversal of 11500965 is 56900511.

It is an interprime number because it is at equal distance from previous prime (11500963) and next prime (11500967).

It is not a de Polignac number, because 11500965 - 2¹ = 11500963 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 (11500963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8506 + ... + 9764.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^11500965 is an apocalyptic number.

11500965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11500965 is an abundant number, since it is smaller than the sum of its proper divisors (12086235).

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

11500965 is a wasteful number, since it uses less digits than its factorization.

11500965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 11500965 is about 3391.3072700656. The cubic root of 11500965 is about 225.7241851550.

The spelling of 11500965 in words is "eleven million, five hundred thousand, nine hundred sixty-five".