3139198919 has 2 divisors, whose sum is σ = 3139198920. Its totient is φ = 3139198918.

The previous prime is 3139198913. The next prime is 3139198921. The reversal of 3139198919 is 9198919313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3139198919 is a prime.

It is a super-2 number, since 2×3139198919² = 19709139706101537122, which contains 22 as substring.

Together with 3139198921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3139198913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569599459 + 1569599460.

It is an arithmetic number, because the mean of its divisors is an integer number (1569599460).

Almost surely, 2^3139198919 is an apocalyptic number.

3139198919 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139198919 is an equidigital number, since it uses as much as digits as its factorization.

3139198919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 53.

The square root of 3139198919 is about 56028.5544967921. The cubic root of 3139198919 is about 1464.2198114152.

The spelling of 3139198919 in words is "three billion, one hundred thirty-nine million, one hundred ninety-eight thousand, nine hundred nineteen".