1922519 has 2 divisors, whose sum is σ = 1922520. Its totient is φ = 1922518.

The previous prime is 1922507. The next prime is 1922533. The reversal of 1922519 is 9152291.

It is a weak prime.

It is an emirp because it is prime and its reverse (9152291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1922519 - 2¹⁶ = 1856983 is a prime.

It is a super-2 number, since 2×1922519² = 7392158610722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1922491 and 1922500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1922579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961259 + 961260.

It is an arithmetic number, because the mean of its divisors is an integer number (961260).

2^1922519 is an apocalyptic number.

1922519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922519 is an equidigital number, since it uses as much as digits as its factorization.

1922519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 29.

The square root of 1922519 is about 1386.5493139445. The cubic root of 1922519 is about 124.3436314754.

The spelling of 1922519 in words is "one million, nine hundred twenty-two thousand, five hundred nineteen".