5191019 has 2 divisors, whose sum is σ = 5191020. Its totient is φ = 5191018.

The previous prime is 5191013. The next prime is 5191027. The reversal of 5191019 is 9101915.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5191019 is a prime.

It is a super-2 number, since 2×5191019² = 53893356516722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5191013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595509 + 2595510.

It is an arithmetic number, because the mean of its divisors is an integer number (2595510).

Almost surely, 2^5191019 is an apocalyptic number.

5191019 is a deficient number, since it is larger than the sum of its proper divisors (1).

5191019 is an equidigital number, since it uses as much as digits as its factorization.

5191019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 5191019 is about 2278.3807846802. The cubic root of 5191019 is about 173.1480239333.

The spelling of 5191019 in words is "five million, one hundred ninety-one thousand, nineteen".