2315532132 has 18 divisors (see below), whose sum is σ = 5853150758. Its totient is φ = 771844032.

The previous prime is 2315532119. The next prime is 2315532133. The reversal of 2315532132 is 2312355132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2294793216 + 20738916 = 47904^2 + 4554^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2315532096 and 2315532105.

It is not an unprimeable number, because it can be changed into a prime (2315532133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32160133 + ... + 32160204.

Almost surely, 2^2315532132 is an apocalyptic number.

It is an amenable number.

2315532132 is an abundant number, since it is smaller than the sum of its proper divisors (3537618626).

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

2315532132 is a wasteful number, since it uses less digits than its factorization.

2315532132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64320347 (or 64320342 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 2315532132 is about 48119.9764339094. The cubic root of 2315532132 is about 1322.9708362684.

Adding to 2315532132 its reverse (2312355132), we get a palindrome (4627887264).

The spelling of 2315532132 in words is "two billion, three hundred fifteen million, five hundred thirty-two thousand, one hundred thirty-two".