1948519 has 2 divisors, whose sum is σ = 1948520. Its totient is φ = 1948518.

The previous prime is 1948517. The next prime is 1948549. The reversal of 1948519 is 9158491.

It is a weak prime.

It is an emirp because it is prime and its reverse (9158491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1948519 - 2¹ = 1948517 is a prime.

It is a super-2 number, since 2×1948519² = 7593452586722, which contains 22 as substring.

Together with 1948517, 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 (1948511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974259 + 974260.

It is an arithmetic number, because the mean of its divisors is an integer number (974260).

2^1948519 is an apocalyptic number.

1948519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948519 is an equidigital number, since it uses as much as digits as its factorization.

1948519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 1948519 is about 1395.8936205886. The cubic root of 1948519 is about 124.9016613230.

The spelling of 1948519 in words is "one million, nine hundred forty-eight thousand, five hundred nineteen".