3138276197 has 6 divisors (see below), whose sum is σ = 3650647878. Its totient is φ = 2689950984.

The previous prime is 3138276187. The next prime is 3138276233. The reversal of 3138276197 is 7916728313.

It can be written as a sum of positive squares in only one way, i.e., 3130514401 + 7761796 = 55951^2 + 2786^2 .

It is not a de Polignac number, because 3138276197 - 2²² = 3134081893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138276137) 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 5 ways as a sum of consecutive naturals, for example, 32023178 + ... + 32023275.

It is an arithmetic number, because the mean of its divisors is an integer number (608441313).

Almost surely, 2^3138276197 is an apocalyptic number.

It is an amenable number.

3138276197 is a deficient number, since it is larger than the sum of its proper divisors (512371681).

3138276197 is an equidigital number, since it uses as much as digits as its factorization.

3138276197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64046467 (or 64046460 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 3138276197 is about 56020.3195010525. The cubic root of 3138276197 is about 1464.0763352965.

The spelling of 3138276197 in words is "three billion, one hundred thirty-eight million, two hundred seventy-six thousand, one hundred ninety-seven".