11500072 has 16 divisors (see below), whose sum is σ = 21675060. Its totient is φ = 5720064.

The previous prime is 11500061. The next prime is 11500079. The reversal of 11500072 is 27000511.

It can be written as a sum of positive squares in 2 ways, for example, as 10850436 + 649636 = 3294^2 + 806^2 .

It is not an unprimeable number, because it can be changed into a prime (11500079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2073 + ... + 5224.

Almost surely, 2^11500072 is an apocalyptic number.

It is an amenable number.

11500072 is a deficient number, since it is larger than the sum of its proper divisors (10174988).

11500072 is a wasteful number, since it uses less digits than its factorization.

11500072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500 (or 7496 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 11500072 is about 3391.1756073669. The cubic root of 11500072 is about 225.7183428361.

Adding to 11500072 its reverse (27000511), we get a palindrome (38500583).

The spelling of 11500072 in words is "eleven million, five hundred thousand, seventy-two".