11513502 has 160 divisors (see below), whose sum is σ = 35126784. Its totient is φ = 2721600.

The previous prime is 11513483. The next prime is 11513503. The reversal of 11513502 is 20531511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11513503) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 162127 + ... + 162197.

Almost surely, 2^11513502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11513502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17563392).

11513502 is an abundant number, since it is smaller than the sum of its proper divisors (23613282).

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

11513502 is a wasteful number, since it uses less digits than its factorization.

11513502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 11513502 is about 3393.1551688657. The cubic root of 11513502 is about 225.8061746940.

Subtracting 11513502 from its reverse (20531511), we obtain a square (9018009 = 3003²).

The spelling of 11513502 in words is "eleven million, five hundred thirteen thousand, five hundred two".