11521260 has 36 divisors (see below), whose sum is σ = 34948368. Its totient is φ = 3072288.

The previous prime is 11521259. The next prime is 11521267. The reversal of 11521260 is 6212511.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11521267) 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, 31824 + ... + 32183.

It is an arithmetic number, because the mean of its divisors is an integer number (970788).

Almost surely, 2^11521260 is an apocalyptic number.

11521260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11521260 is an abundant number, since it is smaller than the sum of its proper divisors (23427108).

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

11521260 is a wasteful number, since it uses less digits than its factorization.

11521260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64022 (or 64017 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 11521260 is about 3394.2981601503. The cubic root of 11521260 is about 225.8568806965.

Adding to 11521260 its reverse (6212511), we get a palindrome (17733771).

It can be divided in two parts, 11521 and 260, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 11521260 in words is "eleven million, five hundred twenty-one thousand, two hundred sixty".