1379519 has 2 divisors, whose sum is σ = 1379520. Its totient is φ = 1379518.

The previous prime is 1379513. The next prime is 1379549. The reversal of 1379519 is 9159731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1379519 - 2⁴ = 1379503 is a prime.

It is a super-2 number, since 2×1379519² = 3806145342722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689759 + 689760.

It is an arithmetic number, because the mean of its divisors is an integer number (689760).

2^1379519 is an apocalyptic number.

1379519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379519 is an equidigital number, since it uses as much as digits as its factorization.

1379519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 35.

The square root of 1379519 is about 1174.5292674089. The cubic root of 1379519 is about 111.3206915100.

The spelling of 1379519 in words is "one million, three hundred seventy-nine thousand, five hundred nineteen".