1320019 has 2 divisors, whose sum is σ = 1320020. Its totient is φ = 1320018.

The previous prime is 1319963. The next prime is 1320023. The reversal of 1320019 is 9100231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320019 - 2¹¹ = 1317971 is a prime.

It is a super-2 number, since 2×1320019² = 3484900320722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1319984 and 1320011.

It is not a weakly prime, because it can be changed into another prime (1320119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660009 + 660010.

It is an arithmetic number, because the mean of its divisors is an integer number (660010).

2^1320019 is an apocalyptic number.

1320019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320019 is an equidigital number, since it uses as much as digits as its factorization.

1320019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1320019 is about 1148.9207979665. The cubic root of 1320019 is about 109.6966573659.

The spelling of 1320019 in words is "one million, three hundred twenty thousand, nineteen".