1312506241 has 8 divisors (see below), whose sum is σ = 1355961600. Its totient is φ = 1269120720.

The previous prime is 1312506203. The next prime is 1312506253. The reversal of 1312506241 is 1426052131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312506241 - 2⁷ = 1312506113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312506281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22215 + ... + 55843.

It is an arithmetic number, because the mean of its divisors is an integer number (169495200).

Almost surely, 2^1312506241 is an apocalyptic number.

It is an amenable number.

1312506241 is a deficient number, since it is larger than the sum of its proper divisors (43455359).

1312506241 is a wasteful number, since it uses less digits than its factorization.

1312506241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34919.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1312506241 is about 36228.5279993543. The cubic root of 1312506241 is about 1094.8815203711.

Adding to 1312506241 its reverse (1426052131), we get a palindrome (2738558372).

The spelling of 1312506241 in words is "one billion, three hundred twelve million, five hundred six thousand, two hundred forty-one".