1312055532 has 36 divisors (see below), whose sum is σ = 3423574336. Its totient is φ = 423243360.

The previous prime is 1312055531. The next prime is 1312055551. The reversal of 1312055532 is 2355502131.

It is a happy number.

1312055532 is a `hidden beast` number, since 1 + 3 + 120 + 5 + 5 + 532 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1312055496 and 1312055505.

It is not an unprimeable number, because it can be changed into a prime (1312055531) 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, 586723 + ... + 588954.

Almost surely, 2^1312055532 is an apocalyptic number.

1312055532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312055532 is an abundant number, since it is smaller than the sum of its proper divisors (2111518804).

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

1312055532 is a wasteful number, since it uses less digits than its factorization.

1312055532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175718 (or 1175713 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1312055532 is about 36222.3071048767. The cubic root of 1312055532 is about 1094.7561801540.

Adding to 1312055532 its reverse (2355502131), we get a palindrome (3667557663).

The spelling of 1312055532 in words is "one billion, three hundred twelve million, fifty-five thousand, five hundred thirty-two".