1312133522 has 16 divisors (see below), whose sum is σ = 2250980160. Its totient is φ = 561940848.

The previous prime is 1312133489. The next prime is 1312133527. The reversal of 1312133522 is 2253312131.

It is a super-2 number, since 2×1312133522² = 3443388759112248968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312133527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12788 + ... + 52799.

It is an arithmetic number, because the mean of its divisors is an integer number (140686260).

Almost surely, 2^1312133522 is an apocalyptic number.

1312133522 is a deficient number, since it is larger than the sum of its proper divisors (938846638).

1312133522 is a wasteful number, since it uses less digits than its factorization.

1312133522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67025.

The product of its digits is 1080, while the sum is 23.

The square root of 1312133522 is about 36223.3836354364. The cubic root of 1312133522 is about 1094.7778708881. Note that the first 3 decimals are identical.

Adding to 1312133522 its reverse (2253312131), we get a palindrome (3565445653).

The spelling of 1312133522 in words is "one billion, three hundred twelve million, one hundred thirty-three thousand, five hundred twenty-two".