1311472841 has 4 divisors (see below), whose sum is σ = 1498826112. Its totient is φ = 1124119572.

The previous prime is 1311472787. The next prime is 1311472847. The reversal of 1311472841 is 1482741131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1482741131 = 7879 ⋅188189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311472841 is a prime.

It is a super-2 number, since 2×1311472841² = 3439922025361222562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311472798 and 1311472807.

It is not an unprimeable number, because it can be changed into a prime (1311472847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 93676625 + ... + 93676638.

It is an arithmetic number, because the mean of its divisors is an integer number (374706528).

Almost surely, 2^1311472841 is an apocalyptic number.

It is an amenable number.

1311472841 is a deficient number, since it is larger than the sum of its proper divisors (187353271).

1311472841 is an equidigital number, since it uses as much as digits as its factorization.

1311472841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187353270.

The product of its digits is 5376, while the sum is 32.

The square root of 1311472841 is about 36214.2629498379. The cubic root of 1311472841 is about 1094.5940937653.

The spelling of 1311472841 in words is "one billion, three hundred eleven million, four hundred seventy-two thousand, eight hundred forty-one".