1313617871 has 2 divisors, whose sum is σ = 1313617872. Its totient is φ = 1313617870.

The previous prime is 1313617807. The next prime is 1313617889. The reversal of 1313617871 is 1787163131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313617871 - 2⁶ = 1313617807 is a prime.

It is a super-2 number, since 2×1313617871² = 3451183822021145282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313617471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656808935 + 656808936.

It is an arithmetic number, because the mean of its divisors is an integer number (656808936).

Almost surely, 2^1313617871 is an apocalyptic number.

1313617871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313617871 is an equidigital number, since it uses as much as digits as its factorization.

1313617871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 1313617871 is about 36243.8666673411. The cubic root of 1313617871 is about 1095.1905372373.

The spelling of 1313617871 in words is "one billion, three hundred thirteen million, six hundred seventeen thousand, eight hundred seventy-one".