1312455536 has 40 divisors (see below), whose sum is σ = 2960997984. Its totient is φ = 551865600.

The previous prime is 1312455517. The next prime is 1312455541. The reversal of 1312455536 is 6355542131.

It is a junction number, because it is equal to n+sod(n) for n = 1312455496 and 1312455505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104615 + ... + 116486.

Almost surely, 2^1312455536 is an apocalyptic number.

1312455536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1312455536 is an abundant number, since it is smaller than the sum of its proper divisors (1648542448).

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

1312455536 is a wasteful number, since it uses less digits than its factorization.

1312455536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221169 (or 221163 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 1312455536 is about 36227.8281987756. The cubic root of 1312455536 is about 1094.8674209632.

Adding to 1312455536 its reverse (6355542131), we get a palindrome (7667997667).

The spelling of 1312455536 in words is "one billion, three hundred twelve million, four hundred fifty-five thousand, five hundred thirty-six".