11531532 has 12 divisors (see below), whose sum is σ = 26906936. Its totient is φ = 3843840.

The previous prime is 11531521. The next prime is 11531539. The reversal of 11531532 is 23513511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11531499 and 11531508.

It is not an unprimeable number, because it can be changed into a prime (11531539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480469 + ... + 480492.

Almost surely, 2^11531532 is an apocalyptic number.

11531532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11531532 is an abundant number, since it is smaller than the sum of its proper divisors (15375404).

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

11531532 is a wasteful number, since it uses less digits than its factorization.

11531532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960968 (or 960966 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 11531532 is about 3395.8109488015. The cubic root of 11531532 is about 225.9239831008.

The spelling of 11531532 in words is "eleven million, five hundred thirty-one thousand, five hundred thirty-two".