3138261317 has 2 divisors, whose sum is σ = 3138261318. Its totient is φ = 3138261316.

The previous prime is 3138261311. The next prime is 3138261323. The reversal of 3138261317 is 7131628313.

It is a balanced prime because it is at equal distance from previous prime (3138261311) and next prime (3138261323).

It can be written as a sum of positive squares in only one way, i.e., 2941869121 + 196392196 = 54239^2 + 14014^2 .

It is a cyclic number.

It is not a de Polignac number, because 3138261317 - 2¹⁸ = 3137999173 is a prime.

It is a super-4 number, since 4×3138261317⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3138261311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569130658 + 1569130659.

It is an arithmetic number, because the mean of its divisors is an integer number (1569130659).

Almost surely, 2^3138261317 is an apocalyptic number.

It is an amenable number.

3138261317 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138261317 is an equidigital number, since it uses as much as digits as its factorization.

3138261317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 3138261317 is about 56020.1866919417. The cubic root of 3138261317 is about 1464.0740213414.

The spelling of 3138261317 in words is "three billion, one hundred thirty-eight million, two hundred sixty-one thousand, three hundred seventeen".